Timeline
Lanes are traditions, or entity types with the switch above; an entry from several traditions appears in each of its tradition lanes. Each tradition also has its own timeline on its page. Bars run from start to end where both are known; marks people, projects and organizations still active. 288 entries have no date and are not shown. Hover over or focus an entry to draw its links. Scroll sideways, or use the decades above.
Hypertext
Knowledge representation
Databases
Machine learning
Web standards
Search
Social web
Open knowledge
Decentralized web
Libraries, archives and museums
Life sciences
Media
Geospatial
Commerce and supply chain
Government and law
Finance
Industry and engineering
People
Writings
Standards
Projects
Organizations
Concepts
Library of Congress
The New York Times
Melvil Dewey
Henri La Fontaine
University of Southampton
Paul Otlet
Dewey Decimal Classification
Stanford University
Vannevar Bush
S.R. Ranganathan
Universal Decimal Classification
University of Mannheim
Mundaneum
Henriette Avram
George A. Miller
Norman Joseph Woodland
BBC
Edgar F. Codd
Bernard Silver
Douglas Engelbart
George Laurer
Paul Baran
Marvin Minsky
John McCarthy
Waldo Tobler
Colon Classification
Elinor Ostrom
Roger Tomlinson
Traité de documentation
Ted Nelson
Raymond Reiter
Donald J. Kessler
William A. Woods
Pat Hayes
As We May Think
Memex
International Council of Museums
Lou Burnard
SRI International
ISO
Peter Chen
Robert Cailliau
Gerald Jay Sussman
Ronald J. Brachman
Barcode
Doug Lenat
Christiane Fellbaum
Hector Levesque
Bill Atkinson
Wendy Hall
Phil Zimmermann
CERN
Ivan Herman
Tim Berners-Lee
Tim Bray
Mark Sandler
Mark Musen
Peter Norvig
Semantic network
Nigel Shadbolt
Danny Hillis
Gerhard Weikum
Jim Hendler
Satellite Catalog Number
DARPA
Joan Feigenbaum
Ian Horrocks
Programs with Common Sense
Tom Gruber
Bruce Gilliat
Deborah McGuinness
Frank van Harmelen
Jan Wielemaker
Project Xanadu
Brewster Kahle
Lawrence Lessig
NLS
UN Register of Objects Launched into Outer Space
Augmenting Human Intellect: A Conceptual Framework
Canada Geographic Information System
International Designator
Ti Kan
Clay Shirky
On Distributed Communications: Introduction to Distributed Communications Networks
Veda Hlubinka-Cook
A File Structure for the Complex, the Changing and the Indeterminate
Hypertext
John Giannandrea
MARC
R.V. Guha
Roy Fielding
Kingsley Idehen
Jimmy Wales
Kevin Marks
Col Needham
OCLC
Kevin Ashton
Marc Wick
Semantic Information Processing
Semantic Memory
Larry Sanger
Amit Singhal
Evan Prodromou
José Emilio Labra Gayo
Relational model
Robert Kaye
Tobler's first law of geography
A Computer Movie Simulating Urban Growth in the Detroit Region
A Relational Model of Data for Large Shared Data Banks
Jeff Heflin
Lorrie Cranor
Cory Doctorow
Christian Bizer
Larry Page
Universal Product Code
Sergey Brin
Computer Lib / Dream Machines
Frames
Pierre-Antoine Champin
Zachary Ives
GS1
A Framework for Representing Knowledge
Microsoft
Sören Auer
What's in a Link: Foundations for Semantic Networks
Entity–relationship model
The Entity-Relationship Model: Toward a Unified View of Data
Apple
Global Trade Item Number
Kessler syndrome
On Closed World Data Bases
Denny Vrandečić
Collision Frequency of Artificial Satellites: The Creation of a Debris Belt
Transclusion
Rufus Pollock
Two-line element set
Steve Coast
Getty Vocabularies
International Securities Identification Number
Markus Krötzsch
Microelectronics and Computer Technology Corporation
Thinking Machines Corporation
Cyc
EuroVoc
WGS 84
Lydia Pintscher
Christine Lemmer-Webber
CelesTrak
Getty Research Institute
WordNet
An Overview of the KL-ONE Knowledge Representation System
Aaron Swartz
HyperCard
Protégé
Text Encoding Initiative
UN/EDIFACT
Expressiveness and Tractability in Knowledge Representation and Reasoning
Ruben Verborgh
Juan Benet
Information Management: A Proposal
Building Large Knowledge-Based Systems
World Wide Web
IMDb
HTML
HTTP
Jay Graber
Pretty Good Privacy
OpenLink Software
Web of trust
CDDB
A Translation Approach to Portable Ontology Specifications
Cycorp
Handle System
Open Geospatial Consortium
STEP
Netscape
URI
Amazon
World Wide Web Consortium
Meta Content Framework
PURL
Dublin Core
Internet Archive
SHOE
Database Directive
PICS
International DOI Foundation
Meta Content Framework Using XML
Cool URIs don't change
Encoded Archival Description
FRBR
Gene Ontology
Virtuoso
XBRL
XML
The Anatomy of a Large-Scale Hypertextual Web Search Engine
VIAF
Semantic Web
Semantic Web Road Map
Google
Auto-ID Center
CIDOC Conceptual Reference Model
Code and Other Laws of Cyberspace
DAML
Internet of Things
Weaving the Web
XBRL International
RDF
RSS
Architectural Styles and the Design of Network-based Software Architectures
Crossref
DOI
FOAF
Topic Maps
MusicBrainz
Discogs
Semantic Web layer cake
DAML+OIL
Ontology Development 101: A Guide to Creating Your First Ontology
Creative Commons
Wikipedia
W3C Semantic Web Activity
Annotea
Annotea: An Open RDF Infrastructure for Shared Web Annotations
The Semantic Web
Metacrap: Putting the torch to seven straw-men of the meta-utopia
Wayback Machine
International Semantic Web Conference
UniProt
SNOMED CT
httpRange-14
Platform for Privacy Preferences
ISO 15926
XFN
Basic Geo (WGS84 lat/long) Vocabulary
Wikimedia Foundation
Myspace
Delicious
The Semantic Web, Syllogism, and Worldview
PSI Directive
From SHIQ and RDF to OWL: The Making of a Web Ontology Language
Akoma Ntoso
Folksonomy
Meta Platforms
MetaBrainz Foundation
Space-Track
Facebook
W3C Patent Policy
OWL
RDF Schema
TV Tropes
Open Knowledge Foundation
WHATWG
Wikimedia Deutschland
OpenStreetMap
MapReduce: Simplified Data Processing on Large Clusters
Architecture of the World Wide Web, Volume One
GeoNames
Metaweb
Microformats
Ontology is Overrated: Categories, Links, and Tags
Semantic MediaWiki
Named graph
Named Graphs, Provenance and Trust
OpenID
httpRange-14 resolution
Open Definition
FRBRoo
Semantic MediaWiki
Twitter
OpenStreetMap Foundation
Apache Hadoop
The Semantic Web Revisited
Linked Data
Linked Data (Design Issues)
Understanding Knowledge as a Commons: From Theory to Practice
DBpedia: A Nucleus for a Web of Open Data
Neo4j
OBO Foundry
Ontology Matching
PRISM
YAGO
DBpedia
Music Ontology
Freebase
INSPIRE
EPCIS
Where Are All the Intelligent Agents?
Linked Open Data cloud diagram
YAGO: A Core of Semantic Knowledge Unifying WordNet and Wikipedia
Organization for Transformative Works
SIOC
Open Library
Thoughts on the Social Graph
Hashtag
The Music Ontology
BBC Music and Programmes linked data
8 Principles of Open Government Data
Freebase: A Collaboratively Created Graph Database for Structuring Human Knowledge
GeoJSON
GoodRelations
GoodRelations: An Ontology for Describing Products and Services Offers on the Web
The Movie Database
SPARQL
Google Social Graph API
Cool URIs for the Semantic Web
In Defense of Ambiguity
Semantic Web for the Working Ontologist
ccREL
Information Accountability
RDFa
Europeana
Log in with Facebook
ENTSO-E
CC0
Delete: The Virtue of Forgetting in the Digital Age
HTML microdata
Linked Data – The Story So Far
Linked Movie Database
Media Meets Semantic Web – How the BBC Uses DBpedia and Linked Data to Make Connections
The Unreasonable Effectiveness of Data
id.loc.gov
Linked Movie Data Base
Data.gov
Rich Snippets
Semantics and Complexity of SPARQL
SKOS
Executing SPARQL Queries over the Web of Linked Data
OWL 2
New York Times linked open data
Archive of Our Own
DBTropes
BBC dynamic semantic publishing
Linked Open Data
Nanopublication
Open Graph protocol
The Anatomy of a Nanopublication
data.gov.uk
legislation.gov.uk
EIDR
When owl:sameAs Isn't the Same: An Analysis of Identity in Linked Data
Long Live the Web
Linked Data: Evolving the Web into a Global Data Space
European Case Law Identifier
IndieWeb
Schema.org
Hypothesis
BIBFRAME
GeoSPARQL
International Image Interoperability Framework
Open Data Institute
X Cards
Call for proposals to amend the httpRange-14 resolution
Web Data Commons
Google Knowledge Graph
Introducing the Knowledge Graph: things, not strings
European Legislation Identifier
Wikidata
ImageNet Classification with Deep Convolutional Neural Networks
Legal Entity Identifier
Report of the W3C RDF Validation Workshop
Translating Embeddings for Modeling Multi-relational Data
w3id.org
Efficient Estimation of Word Representations in Vector Space
A Programmable Web: An Unfinished Work
SPARQL 1.1
PROV
NSA Prism program taps in to user data of Apple, Google and others
what3words
CBOR
SPARQL Web-Querying Infrastructure: Ready for Action?
W3C Data Activity
Financial Industry Business Ontology
Financial Instrument Global Identifier
Global Legal Entity Identifier Foundation
DCAT
JSON-LD
JSON-LD and Why I Hate the Semantic Web
Turtle
Protocol Labs
Google Spain v AEPD and Mario Costeja González
IPFS – Content Addressed, Versioned, P2P File System
Knowledge Vault: A Web-Scale Approach to Probabilistic Knowledge Fusion
Shape Expressions: An RDF Validation and Transformation Language
Open Location Code
Wikidata: A Free Collaborative Knowledgebase
Scholarly Context Not Found: One in Five Articles Suffers from Reference Rot
Rebooting the Web of Trust
SAREF
Solid
IPFS
Locking the Web Open: A Call for a Decentralized Web
Linked Data Platform
Towards Making Systems Forget with Machine Unlearning
An Ontological Architecture for Orbital Debris Data
Wikidata Query Service
GraphQL
Linked Art
Records in Contexts
Roads and Bridges: The Unseen Labor Behind Our Digital Infrastructure
Schema.org: Evolution of Structured Data on the Web
FAIR data principles
Triple Pattern Fragments: A Low-cost Knowledge Graph Interface for the Web
From Freebase to Wikidata: The Great Migration
General Data Protection Regulation
The Path to Self-Sovereign Identity
DWeb
Linked Open Vocabularies (LOV): A Gateway to Reusable Semantic Vocabularies on the Web
Foundations of RDF* and SPARQL*
IFLA Library Reference Model
Webmention
Web Annotation Data Model
Activity Streams 2.0
Attention Is All You Need
SHACL
Spatial Data on the Web Best Practices
Semantic Sensor Network Ontology
Curated Folksonomies: Three Implementations of Structure through Human Judgment
Curated folksonomy
Inrupt
sameAs.cc: The Closure of 500M owl:sameAs Statements
ActivityPub
ODRL
Revealed: 50 million Facebook profiles harvested for Cambridge Analytica in major data breach
GS1 Digital Link
Google Dataset Search
BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding
Toward easier RDF: a proposal
Bluesky
Report of the W3C Workshop on Web Standardization for Graph Data
Local-first software
Local-first software: You own your data, in spite of the cloud
Google Dataset Search: Building a search engine for datasets in an open Web ecosystem
Industry-scale Knowledge Graphs: Lessons and Challenges
Verifiable Credentials Data Model
Web of Things Thing Description
Anthropic
Knowledge Graphs
Coalition for Content Provenance and Authenticity
DWeb Principles
Bluesky Social PBC
Content Credentials
AT Protocol
Decentralized Identifiers
Data Privacy Vocabulary
Unifying Large Language Models and Knowledge Graphs: A Roadmap
Bluesky and the AT Protocol: Usable Decentralized Social Media
GraphRAG
GQL
From Local to Global: A Graph RAG Approach to Query-Focused Summarization
RDF Dataset Canonicalization
SPINACH: SPARQL-Based Information Navigation for Challenging Real-World Questions
Digital Product Passport
TraCSS
Model Context Protocol
SHACL 1.2
Verifiable Credential Data Integrity
CC signals
Linked Web Storage Protocol
RDF 1.2
CBOR-LD
W3C Workshop Report: The Future of ODRL
W3C and the State of the Web in the AI Era
1800s
- 1800 Library of Congress founded organization
1850s
- 18 Sep 1851 The New York Times founded organization
- 10 Dec 1851 Melvil Dewey born person
- 22 Apr 1854 Henri La Fontaine born person
1860s
- 1862 University of Southampton founded organization
- 23 Aug 1868 Paul Otlet born person
1870s
- 1876 Dewey Decimal Classification first published standard
1880s
- 1885 Stanford University founded organization
1890s
- 11 Mar 1890 Vannevar Bush born person
- 9 Aug 1892 S.R. Ranganathan born person [?]
1900s
- 1905 Universal Decimal Classification first published standard
- 1907 University of Mannheim founded organization
1910s
- 1910 Mundaneum founded organization
- 7 Oct 1919 Henriette Avram born person
1920s
- 3 Feb 1920 George A. Miller born person
- 6 Sep 1921 Norman Joseph Woodland born person
- 1922 BBC founded organization
- 19 Aug 1923 Edgar F. Codd born person [?]
- 21 Sep 1924 Bernard Silver born person
- 30 Jan 1925 Douglas Engelbart born person
- 23 Sep 1925 George Laurer born person
- 29 Apr 1926 Paul Baran born person
- 9 Aug 1927 Marvin Minsky born person
- 4 Sep 1927 John McCarthy born person
1930s
- 16 Nov 1930 Waldo Tobler born person
- 26 Dec 1931 Melvil Dewey died person
- 1933 Colon Classification first published standard
- 7 Aug 1933 Elinor Ostrom born person
- 17 Nov 1933 Roger Tomlinson born person
- 1934 Traité de documentation published writing
- 17 Jun 1937 Ted Nelson born person
- 12 Jun 1939 Raymond Reiter born person
1940s
- 1940 Donald J. Kessler born person [?]
- 17 Jun 1942 William A. Woods born person
- 14 May 1943 Henri La Fontaine died person
- 21 Aug 1944 Pat Hayes born person
- 10 Dec 1944 Paul Otlet died person
- Jul 1945 As We May Think published writing
- Jul 1945 Memex first described concept
- 1946 International Council of Museums founded organization
- 1946 Lou Burnard born person
- 1946 SRI International founded organization
- 1947 ISO founded organization
- 3 Jan 1947 Peter Chen born person
- 26 Jan 1947 Robert Cailliau born person
- 8 Feb 1947 Gerald Jay Sussman born person
- 1949 Ronald J. Brachman born person
- 20 Oct 1949 Barcode first described concept
1950s
- 13 Sep 1950 Doug Lenat born person
- 18 Dec 1950 Christiane Fellbaum born person
- 1951 Hector Levesque born person
- 17 Mar 1951 Bill Atkinson born person
- 25 Oct 1952 Wendy Hall born person
- 12 Feb 1954 Phil Zimmermann born person
- 29 Sep 1954 CERN founded organization
- 24 Feb 1955 Ivan Herman born person
- 8 Jun 1955 Tim Berners-Lee born person
- 21 Jun 1955 Tim Bray born person
- 11 Dec 1955 Mark Sandler born person
- 1956 Mark Musen born person
- 1956 Peter Norvig born person
- 1956 Semantic network first described concept
- 9 Apr 1956 Nigel Shadbolt born person
- 25 Sep 1956 Danny Hillis born person
- 1957 Gerhard Weikum born person
- 2 Apr 1957 Jim Hendler born person
- Oct 1957 Satellite Catalog Number first published standard
- 1958 DARPA founded organization
- 1958 Joan Feigenbaum born person
- 11 Mar 1958 Ian Horrocks born person
- 1959 Programs with Common Sense published writing
- 1959 Tom Gruber born person
- 30 May 1959 Bruce Gilliat born person
1960s
- 1960 Deborah McGuinness born person
- 1960 Frank van Harmelen born person
- 1960 Jan Wielemaker born person
- 1960 Project Xanadu started project
- 22 Oct 1960 Brewster Kahle born person
- 3 Jun 1961 Lawrence Lessig born person
- 1962 NLS started project
- 1962 UN Register of Objects Launched into Outer Space started project [?]
- Oct 1962 Augmenting Human Intellect: A Conceptual Framework published writing
- c. 1963 Canada Geographic Information System started project [?]
- 1963 International Designator first published standard
- 1963 Ti Kan born person [?]
- 28 Aug 1963 Bernard Silver died person
- 1964 Clay Shirky born person
- Aug 1964 On Distributed Communications: Introduction to Distributed Communications Networks published writing
- 26 Dec 1964 Veda Hlubinka-Cook born person
- 1965 A File Structure for the Complex, the Changing and the Indeterminate published writing
- 1965 Hypertext first described concept
- 1965 John Giannandrea born person
- 1965 MARC first published standard
- 1965 R.V. Guha born person
- Sep 1965 Roy Fielding born person
- 18 Nov 1965 Kingsley Idehen born person
- 7 Aug 1966 Jimmy Wales born person [?]
- 13 Sep 1966 Kevin Marks born person
- 26 Jan 1967 Col Needham born person
- Jul 1967 OCLC founded organization
- 1968 Kevin Ashton born person [?]
- 1968 Marc Wick born person [?]
- 1968 Semantic Information Processing published writing
- 1968 Semantic Memory published writing [?]
- 16 Jul 1968 Larry Sanger born person
- Sep 1968 Amit Singhal born person
- 14 Oct 1968 Evan Prodromou born person
- 1969 José Emilio Labra Gayo born person
- 1969 Relational model first described concept [?]
1970s
- 1970 Robert Kaye born person [?]
- 1970 Tobler's first law of geography first described concept
- Jun 1970 A Computer Movie Simulating Urban Growth in the Detroit Region published writing
- Jun 1970 A Relational Model of Data for Large Shared Data Banks published writing
- Aug 1970 Jeff Heflin born person
- 25 Feb 1971 Lorrie Cranor born person
- 17 Jul 1971 Cory Doctorow born person
- 27 Sep 1972 S.R. Ranganathan died person
- 1973 Christian Bizer born person
- 26 Mar 1973 Larry Page born person
- 3 Apr 1973 Universal Product Code first published standard
- 21 Aug 1973 Sergey Brin born person
- 1974 Computer Lib / Dream Machines published writing
- 1974 Frames first described concept
- 1974 Pierre-Antoine Champin born person
- 1974 Zachary Ives born person
- 26 Apr 1974 GS1 founded organization [?]
- Jun 1974 A Framework for Representing Knowledge published writing
- 28 Jun 1974 Vannevar Bush died person
- 1975 Microsoft founded organization
- 1975 Sören Auer born person
- 1975 What's in a Link: Foundations for Semantic Networks published writing
- Mar 1976 Entity–relationship model first described concept
- Mar 1976 The Entity-Relationship Model: Toward a Unified View of Data published writing
- 1 Apr 1976 Apple founded organization
- 1977 Global Trade Item Number first published standard [?]
- 1978 Kessler syndrome first described concept
- 1978 On Closed World Data Bases published writing
- 27 Feb 1978 Denny Vrandečić born person
- Jun 1978 Collision Frequency of Artificial Satellites: The Creation of a Debris Belt published writing
1980s
- 1980 Transclusion first described concept
- 2 Aug 1980 Rufus Pollock born person
- Dec 1980 Two-line element set first published standard [?]
- 20 Dec 1980 Steve Coast born person
- 1981 Getty Vocabularies started project [?]
- 1981 International Securities Identification Number first published standard
- 6 May 1981 Markus Krötzsch born person
- 1982 Microelectronics and Computer Technology Corporation founded organization
- 1983 Thinking Machines Corporation founded organization
- 1984 Cyc started project
- 1984 EuroVoc started project
- 1984 WGS 84 first published standard
- 20 Jul 1984 Lydia Pintscher born person
- 26 Sep 1984 Christine Lemmer-Webber born person
- 1985 CelesTrak started project
- 1985 Getty Research Institute founded organization
- 1985 WordNet started project
- Apr 1985 An Overview of the KL-ONE Knowledge Representation System published writing
- 8 Nov 1986 Aaron Swartz born person
- 1987 HyperCard started project
- 1987 Protégé started project
- 1987 Text Encoding Initiative first published standard
- 1987 UN/EDIFACT first published standard
- Feb 1987 Expressiveness and Tractability in Knowledge Representation and Reasoning published writing
- 28 Feb 1987 Ruben Verborgh born person
- 16 Mar 1988 Juan Benet born person
- c. 1989 Canada Geographic Information System ended project [?]
- Mar 1989 Information Management: A Proposal published writing
1990s
- 1990 Building Large Knowledge-Based Systems published writing [?]
- 1990 World Wide Web started project
- 17 Oct 1990 IMDb started project
- 1991 HTML first published standard
- 1991 HTTP first published standard
- 1991 Jay Graber born person
- 1991 Pretty Good Privacy started project
- 1992 OpenLink Software founded organization
- 1992 Web of trust first described concept
- c. 1993 CDDB started project [?]
- Jun 1993 A Translation Approach to Portable Ontology Specifications published writing
- 1994 Cycorp founded organization
- 1994 Handle System first published standard [?]
- 1994 Open Geospatial Consortium founded organization
- 1994 STEP first published standard
- 4 Apr 1994 Netscape founded organization
- Jun 1994 URI first described concept
- 5 Jul 1994 Amazon founded organization
- Oct 1994 World Wide Web Consortium founded organization
- 1995 Meta Content Framework first published standard
- 1995 PURL first published standard
- Mar 1995 Dublin Core first published standard
- 1996 Internet Archive founded organization
- c. 1996 SHOE first published standard
- 11 Mar 1996 Database Directive started project
- 31 Oct 1996 PICS first published standard
- 1997 International DOI Foundation founded organization
- 6 Jun 1997 Meta Content Framework Using XML published writing
- 1998 Cool URIs don't change published writing
- 1998 Encoded Archival Description first published standard
- 1998 FRBR first published standard
- 1998 Gene Ontology started project
- 1998 Virtuoso started project
- 1998 XBRL first published standard
- 10 Feb 1998 XML first published standard
- Apr 1998 The Anatomy of a Large-Scale Hypertextual Web Search Engine published writing
- Apr 1998 VIAF started project
- Sep 1998 Semantic Web first described concept [?]
- Sep 1998 Semantic Web Road Map published writing
- 4 Sep 1998 Google founded organization
- 1999 Auto-ID Center founded organization
- 1999 CIDOC Conceptual Reference Model first published standard
- 1999 Code and Other Laws of Cyberspace published writing
- 1999 DAML started project
- 1999 Internet of Things first described concept
- 1999 Weaving the Web published writing
- 1999 XBRL International founded organization
- 22 Feb 1999 RDF first published standard
- Mar 1999 RSS first published standard
2000s
- 2000 Architectural Styles and the Design of Network-based Software Architectures published writing
- 2000 Crossref founded organization
- 2000 DOI first published standard
- 2000 FOAF first published standard
- 2000 Microelectronics and Computer Technology Corporation dissolved organization
- 2000 Topic Maps first published standard [?]
- 17 Jul 2000 MusicBrainz started project
- Nov 2000 Discogs started project
- Dec 2000 Semantic Web layer cake first described concept [?]
- 2001 DAML+OIL first published standard
- 2001 Ontology Development 101: A Guide to Creating Your First Ontology published writing
- 15 Jan 2001 Creative Commons founded organization
- 15 Jan 2001 Wikipedia started project
- Feb 2001 W3C Semantic Web Activity started project
- May 2001 Annotea started project
- May 2001 Annotea: An Open RDF Infrastructure for Shared Web Annotations published writing
- May 2001 The Semantic Web published writing
- 26 Aug 2001 Metacrap: Putting the torch to seven straw-men of the meta-utopia published writing
- 25 Oct 2001 Wayback Machine started project
- 2002 International Semantic Web Conference started project
- 2002 UniProt started project
- Jan 2002 SNOMED CT first published standard
- 25 Mar 2002 httpRange-14 first described concept
- 16 Apr 2002 Platform for Privacy Preferences first published standard
- 16 Sep 2002 Raymond Reiter died person
- 2003 ISO 15926 first published standard
- 2003 XFN first published standard
- Jan 2003 Basic Geo (WGS84 lat/long) Vocabulary first published standard
- 18 Apr 2003 Edgar F. Codd died person
- 20 Jun 2003 Wikimedia Foundation founded organization
- 15 Jul 2003 Netscape dissolved organization
- Aug 2003 Myspace started project
- Sep 2003 Delicious started project
- 7 Nov 2003 The Semantic Web, Syllogism, and Worldview published writing
- 17 Nov 2003 PSI Directive started project
- Dec 2003 From SHIQ and RDF to OWL: The Making of a Web Ontology Language published writing
- 2004 Akoma Ntoso first published standard
- 2004 Folksonomy first described concept
- 2004 HyperCard ended project
- 2004 Meta Platforms founded organization
- 2004 MetaBrainz Foundation founded organization [?]
- 2004 Space-Track started project
- 4 Feb 2004 Facebook started project
- 5 Feb 2004 W3C Patent Policy published writing
- 10 Feb 2004 OWL first published standard
- 10 Feb 2004 RDF Schema first published standard
- Apr 2004 TV Tropes started project
- 20 May 2004 Open Knowledge Foundation founded organization
- 4 Jun 2004 WHATWG founded organization
- 13 Jun 2004 Wikimedia Deutschland founded organization
- 9 Aug 2004 OpenStreetMap started project
- Dec 2004 MapReduce: Simplified Data Processing on Large Clusters published writing
- 15 Dec 2004 Architecture of the World Wide Web, Volume One first published standard
- 2005 GeoNames started project
- 2005 Metaweb founded organization
- 2005 Microformats first published standard
- 2005 Ontology is Overrated: Categories, Links, and Tags published writing
- 2005 Semantic MediaWiki started project
- May 2005 Named graph first described concept [?]
- May 2005 Named Graphs, Provenance and Trust published writing
- May 2005 OpenID first published standard
- 18 Jun 2005 httpRange-14 resolution published writing
- Oct 2005 Open Definition first published standard [?]
- 2006 FRBRoo first published standard
- 2006 Semantic MediaWiki published writing
- 27 Feb 2006 James G. Schmolze died person
- 21 Mar 2006 Twitter started project
- Apr 2006 OpenStreetMap Foundation founded organization
- 1 Apr 2006 Apache Hadoop started project
- 22 Apr 2006 Henriette Avram died person
- May 2006 The Semantic Web Revisited published writing
- Jul 2006 Linked Data first described concept
- 27 Jul 2006 Linked Data (Design Issues) published writing
- Dec 2006 Understanding Knowledge as a Commons: From Theory to Practice published writing
- 2007 DBpedia: A Nucleus for a Web of Open Data published writing
- 2007 Neo4j started project
- 2007 OBO Foundry started project
- 2007 Ontology Matching published writing
- 2007 PRISM started project
- 2007 YAGO started project [?]
- 10 Jan 2007 DBpedia started project
- Feb 2007 Music Ontology first published standard
- Mar 2007 Freebase started project
- 14 Mar 2007 INSPIRE started project
- Apr 2007 EPCIS first published standard
- May 2007 Where Are All the Intelligent Agents? published writing
- 1 May 2007 Linked Open Data cloud diagram started project
- 8 May 2007 YAGO: A Core of Semantic Knowledge Unifying WordNet and Wikipedia published writing
- 17 May 2007 Organization for Transformative Works founded organization
- 12 Jun 2007 SIOC first published standard
- 16 Jul 2007 Open Library started project [?]
- 17 Aug 2007 Thoughts on the Social Graph published writing
- 23 Aug 2007 Hashtag first described concept
- Sep 2007 The Music Ontology published writing [?]
- Oct 2007 BBC Music and Programmes linked data started project
- 8 Dec 2007 8 Principles of Open Government Data published writing
- 2008 Freebase: A Collaboratively Created Graph Database for Structuring Human Knowledge published writing
- 2008 GeoJSON first published standard
- 2008 GoodRelations first published standard [?]
- 2008 GoodRelations: An Ontology for Describing Products and Services Offers on the Web published writing
- 2008 The Movie Database started project
- 15 Jan 2008 SPARQL first published standard
- 1 Feb 2008 Google Social Graph API started project
- 31 Mar 2008 Cool URIs for the Semantic Web published writing
- Apr 2008 In Defense of Ambiguity published writing
- May 2008 Semantic Web for the Working Ontologist published writing
- 1 May 2008 ccREL first published standard
- Jun 2008 Information Accountability published writing
- 14 Oct 2008 RDFa first published standard
- 20 Nov 2008 Europeana started project
- Dec 2008 Log in with Facebook started project
- 19 Dec 2008 ENTSO-E founded organization [?]
- 2009 CC0 first published standard
- 2009 Delete: The Virtue of Forgetting in the Digital Age published writing
- 2009 HTML microdata first published standard [?]
- 2009 Linked Data – The Story So Far published writing
- 2009 Linked Movie Database started project [?]
- 2009 Media Meets Semantic Web – How the BBC Uses DBpedia and Linked Data to Make Connections published writing
- Mar 2009 The Unreasonable Effectiveness of Data published writing
- Apr 2009 id.loc.gov started project
- 20 Apr 2009 Linked Movie Data Base published writing
- May 2009 Data.gov started project
- 12 May 2009 Rich Snippets started project
- Aug 2009 Semantics and Complexity of SPARQL published writing
- 18 Aug 2009 SKOS first published standard
- Oct 2009 Executing SPARQL Queries over the Web of Linked Data published writing
- 27 Oct 2009 OWL 2 first published standard
- 30 Oct 2009 New York Times linked open data started project
- 14 Nov 2009 Archive of Our Own started project
- Dec 2009 DBTropes started project
2010s
- 2010 BBC dynamic semantic publishing started project
- 2010 Linked Open Data first described concept
- 2010 Nanopublication first described concept
- 2010 Open Graph protocol first published standard
- 2010 The Anatomy of a Nanopublication published writing
- Jan 2010 data.gov.uk started project
- 16 Jul 2010 Metaweb dissolved organization
- 29 Jul 2010 legislation.gov.uk started project [?]
- Oct 2010 EIDR first published standard
- Nov 2010 When owl:sameAs Isn't the Same: An Analysis of Identity in Linked Data published writing
- Dec 2010 Long Live the Web published writing
- 2011 Linked Data: Evolving the Web into a Global Data Space published writing
- 26 Mar 2011 Paul Baran died person
- 29 Apr 2011 European Case Law Identifier first published standard
- Jun 2011 IndieWeb started project
- 2 Jun 2011 Schema.org first published standard
- 1 Jul 2011 Hypothesis founded organization
- 24 Oct 2011 John McCarthy died person
- 2012 BIBFRAME first published standard
- 2012 GeoSPARQL first published standard [?]
- 2012 International Image Interoperability Framework first published standard
- 2012 Open Data Institute founded organization
- 2012 X Cards first published standard
- 29 Feb 2012 Call for proposals to amend the httpRange-14 resolution published writing
- 13 Mar 2012 Web Data Commons started project
- 20 Apr 2012 Google Social Graph API ended project
- 16 May 2012 Google Knowledge Graph started project
- 16 May 2012 Introducing the Knowledge Graph: things, not strings published writing
- 12 Jun 2012 Elinor Ostrom died person
- 22 Jul 2012 George A. Miller died person
- Oct 2012 European Legislation Identifier first published standard
- 29 Oct 2012 Wikidata started project
- Dec 2012 ImageNet Classification with Deep Convolutional Neural Networks published writing
- Dec 2012 Legal Entity Identifier first published standard
- 9 Dec 2012 Norman Joseph Woodland died person
- 2013 Report of the W3C RDF Validation Workshop published writing [?]
- 2013 Translating Embeddings for Modeling Multi-relational Data published writing
- 2013 w3id.org started project
- 11 Jan 2013 Aaron Swartz died person
- 16 Jan 2013 Efficient Estimation of Word Representations in Vector Space published writing
- 28 Feb 2013 A Programmable Web: An Unfinished Work published writing
- 21 Mar 2013 SPARQL 1.1 first published standard
- 30 Apr 2013 PROV first published standard
- Jun 2013 NSA Prism program taps in to user data of Apple, Google and others published writing
- Jul 2013 what3words started project
- 2 Jul 2013 Douglas Engelbart died person
- Oct 2013 CBOR first published standard
- Oct 2013 SPARQL Web-Querying Infrastructure: Ready for Action? published writing
- Dec 2013 W3C Data Activity started project
- Dec 2013 W3C Semantic Web Activity ended project
- 2014 Financial Industry Business Ontology first published standard [?]
- 2014 Financial Instrument Global Identifier first published standard
- 2014 Global Legal Entity Identifier Foundation founded organization
- 16 Jan 2014 DCAT first published standard
- 16 Jan 2014 JSON-LD first published standard
- 21 Jan 2014 JSON-LD and Why I Hate the Semantic Web published writing
- Feb 2014 Roger Tomlinson died person [?]
- 25 Feb 2014 Turtle first published standard
- May 2014 Protocol Labs founded organization
- 13 May 2014 Google Spain v AEPD and Mario Costeja González published writing
- 14 Jul 2014 IPFS – Content Addressed, Versioned, P2P File System published writing
- Aug 2014 Knowledge Vault: A Web-Scale Approach to Probabilistic Knowledge Fusion published writing
- 4 Sep 2014 Shape Expressions: An RDF Validation and Transformation Language published writing
- Oct 2014 Open Location Code first published standard
- Oct 2014 Wikidata: A Free Collaborative Knowledgebase published writing
- 26 Dec 2014 Scholarly Context Not Found: One in Five Articles Suffers from Reference Rot published writing
- 2015 Rebooting the Web of Trust started project
- 2015 SAREF first published standard [?]
- c. 2015 Solid started project [?]
- Feb 2015 IPFS started project
- 11 Feb 2015 Locking the Web Open: A Call for a Decentralized Web published writing
- 26 Feb 2015 Linked Data Platform first published standard
- May 2015 Towards Making Systems Forget with Machine Unlearning published writing
- 6 Aug 2015 An Ontological Architecture for Orbital Debris Data published writing
- 7 Sep 2015 Wikidata Query Service started project
- 14 Sep 2015 GraphQL first published standard
- 2016 Linked Art first published standard
- 2016 Records in Contexts first published standard
- 2016 Roads and Bridges: The Unseen Labor Behind Our Digital Infrastructure published writing
- 24 Jan 2016 Marvin Minsky died person
- Feb 2016 Schema.org: Evolution of Structured Data on the Web published writing
- Mar 2016 FAIR data principles first described concept
- Mar 2016 Triple Pattern Fragments: A Low-cost Knowledge Graph Interface for the Web published writing
- 11 Apr 2016 From Freebase to Wikidata: The Great Migration published writing
- 14 Apr 2016 General Data Protection Regulation started project
- 26 Apr 2016 The Path to Self-Sovereign Identity published writing
- 2 May 2016 Freebase ended project
- Jun 2016 DWeb started project
- 6 Dec 2016 Linked Open Vocabularies (LOV): A Gateway to Reusable Semantic Vocabularies on the Web published writing
- 2017 Foundations of RDF* and SPARQL* published writing
- 2017 IFLA Library Reference Model first published standard
- 12 Jan 2017 Webmention first published standard
- 23 Feb 2017 Web Annotation Data Model first published standard
- 23 May 2017 Activity Streams 2.0 first published standard
- 12 Jun 2017 Attention Is All You Need published writing
- 20 Jul 2017 SHACL first published standard
- 28 Sep 2017 Spatial Data on the Web Best Practices first published standard
- 19 Oct 2017 Semantic Sensor Network Ontology first published standard
- 2018 Curated Folksonomies: Three Implementations of Structure through Human Judgment published writing [?]
- 2018 Curated folksonomy first described concept [?]
- 2018 Inrupt founded organization
- 2018 sameAs.cc: The Closure of 500M owl:sameAs Statements published writing
- 23 Jan 2018 ActivityPub first published standard
- 15 Feb 2018 ODRL first published standard
- 20 Feb 2018 Waldo Tobler died person
- 17 Mar 2018 Revealed: 50 million Facebook profiles harvested for Cambridge Analytica in major data breach published writing
- Aug 2018 GS1 Digital Link first published standard
- 30 Aug 2018 Platform for Privacy Preferences superseded standard
- 5 Sep 2018 Google Dataset Search started project
- 11 Oct 2018 BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding published writing
- 21 Nov 2018 Toward easier RDF: a proposal published writing
- 2019 Bluesky started project
- 2019 Report of the W3C Workshop on Web Standardization for Graph Data published writing [?]
- Apr 2019 Local-first software first described concept
- Apr 2019 Local-first software: You own your data, in spite of the cloud published writing
- 13 May 2019 Google Dataset Search: Building a search engine for datasets in an open Web ecosystem published writing
- 24 Jul 2019 Industry-scale Knowledge Graphs: Lessons and Challenges published writing
- 19 Nov 2019 Verifiable Credentials Data Model first published standard
- 5 Dec 2019 George Laurer died person
2020s
- 9 Apr 2020 Web of Things Thing Description first published standard
- 2021 Anthropic founded organization
- 2021 Knowledge Graphs published writing
- Feb 2021 Coalition for Content Provenance and Authenticity founded organization
- Feb 2021 DWeb Principles published writing
- Oct 2021 Bluesky Social PBC founded organization
- 21 Dec 2021 Content Credentials first published standard
- 4 May 2022 AT Protocol first published standard [?]
- 19 Jul 2022 Decentralized Identifiers first published standard
- 5 Dec 2022 Data Privacy Vocabulary first published standard
- 14 Jun 2023 Unifying Large Language Models and Knowledge Graphs: A Roadmap published writing
- 31 Aug 2023 Doug Lenat died person
- Sep 2023 Rebooting the Web of Trust ended project [?]
- 5 Feb 2024 Bluesky and the AT Protocol: Usable Decentralized Social Media published writing
- Apr 2024 GraphRAG first described concept
- 12 Apr 2024 GQL first published standard
- 24 Apr 2024 From Local to Global: A Graph RAG Approach to Query-Focused Summarization published writing
- 21 May 2024 RDF Dataset Canonicalization first published standard
- 16 Jul 2024 SPINACH: SPARQL-Based Information Navigation for Challenging Real-World Questions published writing
- 18 Jul 2024 Digital Product Passport started project
- Sep 2024 TraCSS started project
- 25 Nov 2024 Model Context Protocol first published standard
- 18 Mar 2025 SHACL 1.2 first published standard [?]
- 15 May 2025 Verifiable Credential Data Integrity first published standard
- 5 Jun 2025 Bill Atkinson died person
- 25 Jun 2025 CC signals first described concept
- 6 Sep 2025 Gregg Kellogg died person
- Feb 2026 Robert Kaye died person [?]
- 31 Mar 2026 Linked Web Storage Protocol first published standard
- 7 Apr 2026 RDF 1.2 first published standard [?]
- 28 Apr 2026 CBOR-LD first published standard
- 24 Sep 2026 W3C Workshop Report: The Future of ODRL published writing
- 20 Oct 2026 W3C and the State of the Web in the AI Era published writing