1945-Present

Internet Era

The defining moments that built the internet - from a wartime essay about linked documents to the infrastructure of modern civilization.

Explore timeline Browse by era

Six eras

The internet's major eras

The internet evolved in distinct waves, beginning decades before the first packet moved. Each era built on the last and added a new layer on top of it.

1945–1968

Before the network

Decades before the first packet moves, researchers describe the pieces the internet will be assembled from: information as measurable bits, documents that link to one another, and networks with no center to destroy.

7 milestones

1960s–1980s

Foundations

Researchers and engineers at universities and defense institutions build the protocols, networks, and concepts that make a global internet possible.

14 milestones

1990s

The web emerges

The World Wide Web transforms the internet from a research network into a global medium for information, commerce, and communication.

18 milestones

2000s

Search & platforms

Search engines organize the exploding web, social platforms emerge, and video becomes a native internet format.

17 milestones

2010s

Mobile & cloud

Smartphones put the internet in every pocket, cloud infrastructure scales the web, and social feeds become the main way people find news and each other.

19 milestones

2020s

AI & the next layer

A pandemic stress-tests digital infrastructure, generative AI reshapes how people interact with knowledge and code, and autonomous agents begin browsing, buying, and building on the web alongside us.

35 milestones

JumpFilter

Timeline explorer

Milestones in internet history

110 moments that shaped the internet, from 1945 to the present. Click any milestone to expand its story, or search to find a specific person, technology, or year.

Before the network1945–1968

July 1945Ideas

Vannevar Bush describes the memex

An essay in The Atlantic imagines a desk that stores everything you have read and lets you link documents into trails of your own making.

July 1948IdeasTurning point

Claude Shannon invents information theory

A Bell Labs paper shows that any message can be reduced to bits, and that every channel has an exact capacity below which errors can be eliminated.

February 7, 1958Infrastructure

Sputnik produces ARPA

Four months after the Soviet Union orbits a satellite, the U.S. creates the research agency that will eventually fund ARPANET.

April 1963IdeasTurning point

Licklider's intergalactic computer network

A memo to ARPA's research community asks how incompatible computers at different universities could be made to work together.

August 1964ProtocolsTurning point

Packet switching is invented twice

Paul Baran at RAND and Donald Davies in Britain independently design the same idea: chop messages into pieces and let a network with no center route them.

August 1965Ideas

Ted Nelson coins hypertext

A conference paper names the concept the web would later be built on, and specifies a far more ambitious version than the one that shipped.

December 9, 1968Ideas

The Mother of All Demos

Douglas Engelbart spends 90 minutes showing an audience the mouse, windows, hyperlinks, live collaboration, and video calling, all at once.

Foundations1960s–1980s

October 29, 1969InfrastructureTurning point

ARPANET sends its first message

The U.S. Defense Department's ARPANET transmits the first message between UCLA and SRI, laying the foundation for the internet.

1971Infrastructure

Email is invented

Ray Tomlinson sends the first networked email and introduces the @ symbol to separate user from host.

October 24, 1972Infrastructure

ARPANET's first public demonstration

Forty terminals in a Washington hotel let a skeptical telecom industry use the network for itself, and packet switching stops being theoretical.

May 22, 1973Infrastructure

Ethernet is invented at Xerox PARC

Robert Metcalfe sketches a way for computers in one building to share a single cable, and local networking is born.

May 1974Protocols

TCP is proposed

Vint Cerf and Bob Kahn publish the foundational paper describing the Transmission Control Protocol.

May 3, 1978Commerce

The first spam message

A DEC marketer emails nearly 400 ARPANET users at once to pitch a computer, inventing unsolicited bulk email and the backlash against it.

1980Social Web

Usenet creates the first online communities

Two Duke graduate students build a decentralized discussion network, inventing threads, moderation fights, and internet culture itself.

January 1, 1983ProtocolsTurning point

TCP/IP becomes the universal standard

ARPANET officially adopts TCP/IP, creating a unified network protocol that enables the modern internet.

1984Infrastructure

DNS is introduced

The Domain Name System replaces static host files with a scalable, distributed naming system for the internet.

March 15, 1985Commerce

The first .com domain is registered

A Massachusetts computer maker registers symbolics.com, opening a namespace that would eventually be worth hundreds of billions.

1986Infrastructure

NSFNET becomes the internet's backbone

The National Science Foundation builds a national research network that supersedes ARPANET and carries the internet into the 1990s.

August 1988Social Web

IRC brings real-time chat to the internet

A Finnish student writes Internet Relay Chat, establishing channels, nicknames, operators, and bots, and the shape of group conversation online.

November 2, 1988Cybersecurity

The Morris worm takes down the internet

A graduate student's self-replicating program disables roughly a tenth of the connected internet and forces security to become a discipline.

March 1989ProtocolsTurning point

Tim Berners-Lee proposes the World Wide Web

A CERN physicist submits a proposal for an information management system built on hypertext and the internet.

The web emerges1990s

December 25, 1990Browsers

The first browser and web server go live

Tim Berners-Lee finishes WorldWideWeb, a combined browser and editor, and serves the first web page from a NeXT machine at CERN.

August 6, 1991Infrastructure

The web goes public

Tim Berners-Lee posts the first public description of the World Wide Web project, opening it to the world.

August 25, 1991InfrastructureTurning point

Linus Torvalds announces Linux

A Finnish student posts about a hobby operating system that will end up running most of the servers on the internet.

April 22, 1993BrowsersTurning point

Mosaic browser launches

The first graphical web browser makes the web accessible to ordinary users by displaying text and images together.

April 30, 1993ProtocolsTurning point

CERN puts the web in the public domain

CERN gives up all intellectual property claims on web technology, so anyone can implement it free of charge.

1994Search

Yahoo starts cataloging the web by hand

Two Stanford students build a hierarchical human-edited directory of every site they can find, and briefly it works.

1994Cybersecurity

Netscape invents SSL and makes commerce possible

Encryption between browser and server turns the web from a publishing medium into somewhere it is safe to type a credit card number.

July 5, 1994Commerce

Amazon is founded

Jeff Bezos starts an online bookstore in his garage, the first step toward rebuilding retail around the web.

October 1994Browsers

Netscape Navigator launches

Marc Andreessen co-founds Netscape, releasing a polished commercial browser that drives mainstream web adoption.

April 30, 1995CommerceTurning point

The internet goes commercial

NSFNET is decommissioned and its ban on commercial traffic disappears with it, handing the backbone to private providers.

May 1995BrowsersTurning point

JavaScript is written in ten days

Brendan Eich builds a scripting language for Netscape under extreme deadline pressure, and it becomes the language of the web.

August 16, 1995Browsers

Internet Explorer launches

Microsoft enters the browser market with IE, triggering the first browser war with Netscape.

September 1995Commerce

eBay turns strangers into trading partners

An auction site launched over a holiday weekend proves people will send money to strangers if reputation is made visible.

February 8, 1996Social WebTurning point

Section 230 shields platforms from what users post

Twenty-six words in a U.S. telecom law let online services host user content without being treated as its publisher.

September 1998Infrastructure

ICANN takes over the internet's namespace

A nonprofit is created to run domain names and IP address allocation, making internet governance an international political question.

September 4, 1998SearchTurning point

Google is founded

Two Stanford PhD students incorporate Google, built on PageRank, a new approach to ranking web search results.

June 1999Commerce

Napster breaks the music industry

A teenager's file-sharing program shows that digital goods cost nothing to copy, and an entire industry's economics collapse.

September 1999Infrastructure

Wi-Fi enters the mainstream

The 802.11b standard is branded as 'Wi-Fi,' enabling affordable wireless networking for homes and businesses.

Search & platforms2000s

March 10, 2000Commerce

The dot-com bubble bursts

The Nasdaq peaks at 5,048.62 and then loses nearly 80 percent of its value, wiping out trillions and most of the first web economy.

October 23, 2000SearchTurning point

AdWords gives the web a business model

Google launches self-service keyword advertising, and attention becomes the currency that pays for everything free on the internet.

January 15, 2001Social Web

Wikipedia launches

A free, collaboratively edited encyclopedia launches, redefining how knowledge is created and shared online.

February 4, 2004Social Web

Facebook launches

Mark Zuckerberg launches 'thefacebook' from a Harvard dorm room, eventually connecting over 3 billion people.

April 1, 2004Cloud

Gmail makes the browser an application platform

Google offers a gigabyte of free storage and an interface responsive enough that people stop believing it runs in a web page.

November 9, 2004Browsers

Firefox 1.0 ends the browser monopoly

An open-source browser built from Netscape's remains breaks Internet Explorer's near-total grip and restarts web standards work.

February 14, 2005Social Web

YouTube launches

Three former PayPal employees launch a site where anyone can upload a video and anyone can watch it.

February 18, 2005Browsers

AJAX names the dynamic web

A short essay coins a term for updating pages without reloading them, and static documents give way to web applications.

March 14, 2006CloudTurning point

AWS launches and the cloud era begins

Amazon Web Services launches S3 and EC2, introducing on-demand cloud infrastructure as a commercial service.

March 21, 2006Social Web

Twitter invents the public real-time feed

A 140-character status service becomes the world's live newswire, for breaking news, protest coordination, and everything worse.

January 16, 2007Infrastructure

Netflix starts streaming and video takes over the internet

A DVD-by-mail company adds instant watching, and within a decade video dominates global bandwidth.

June 29, 2007MobileTurning point

The iPhone puts the real web in a pocket

Apple launches the iPhone, combining a phone, an iPod, and a web browser in one device.

April 10, 2008Infrastructure

GitHub makes open source social

Hosting Git repositories with forks, pull requests, and profiles turns collaborative coding into a public, networked activity.

July 10, 2008Mobile

The App Store creates the mobile economy

Apple opens iPhone development to outsiders with a 500-app store, and software distribution moves inside a curated gate.

September 2, 2008Browsers

Chrome rewrites what a browser is

Google ships a browser with a process per tab and a JIT JavaScript engine, then takes most of the market.

September 23, 2008Mobile

Android launches

Google releases Android, an open-source mobile OS that enables smartphones for the other 80% of the world.

October 31, 2008Protocols

The Bitcoin whitepaper is published

An anonymous author publishes a paper proposing a peer-to-peer electronic cash system using blockchain technology.

Mobile & cloud2010s

June 2010Cybersecurity

Stuxnet turns code into a weapon

Malware discovered on Iranian systems physically destroys uranium centrifuges, and cyberwarfare stops being hypothetical.

October 6, 2010Social Web

Instagram launches

A mobile-first photo sharing app launches, pioneering the visual social feed and influencer culture.

2011Social Web

Social media and the Arab Spring

Uprisings across the Middle East and North Africa are organized on Facebook and Twitter, and governments learn to shut the internet off.

January 18, 2012Social Web

The SOPA blackout kills a copyright bill

Wikipedia, Reddit, and thousands of sites go dark to protest anti-piracy legislation, and the bills collapse within days.

June 6, 2012Protocols

World IPv6 Launch Day

Major networks permanently enable IPv6 because the original address space, all 4.3 billion of it, has run out.

2012Mobile

Mobile web usage crosses a threshold

Mobile devices account for a rising share of web traffic, forcing the industry to adopt responsive design.

March 20, 2013Cloud

Docker makes software portable

Containers package an application with its dependencies so it runs identically anywhere, and cloud deployment stops being bespoke.

June 5, 2013CybersecurityTurning point

Snowden reveals mass internet surveillance

Leaked NSA documents show bulk collection of internet traffic and communications, and the industry responds by encrypting everything.

2014Cybersecurity

HTTPS adoption accelerates

Following the Snowden revelations and Google's ranking boost for HTTPS, the web begins a major shift to encrypted connections.

October 28, 2014Protocols

HTML5 becomes a standard and Flash dies

The W3C finalizes HTML5 after years of work, giving the web native video, audio, and graphics without browser plugins.

December 3, 2015Cybersecurity

Let's Encrypt makes HTTPS free

A nonprofit certificate authority issues automated TLS certificates at no cost, and encryption stops being a paid privilege.

March 2016AI

AlphaGo beats Lee Sedol

DeepMind's system defeats a world champion at Go a decade earlier than expected, and deep learning becomes impossible to dismiss.

September 2016Social Web

The TikTok era begins

ByteDance launches Douyin in China, rebranded as TikTok globally, introducing algorithmic short-form video.

October 21, 2016Cybersecurity

The Mirai botnet breaks DNS for half the U.S.

Hijacked cameras and routers flood the Dyn DNS service with 1.2 terabits per second, knocking dozens of major sites offline.

June 12, 2017AITurning point

Attention Is All You Need

Eight Google researchers publish the transformer architecture, the design underlying every large language model that followed.

December 14, 2017Infrastructure

The FCC repeals net neutrality

U.S. regulators reverse rules requiring ISPs to treat all traffic equally, reopening a fight over who controls the pipe.

March 17, 2018Social Web

Cambridge Analytica exposes the data economy

Reporting reveals that a personality quiz harvested data on tens of millions of Facebook users through their friends.

April 3, 2019Mobile

5G networks go live

South Korea and the United States switch on the first commercial 5G networks, and mobile connectivity becomes a geopolitical issue.

AI & the next layer2020s

March 2020Infrastructure

COVID-19 moves daily life online

A global pandemic forces billions of people into remote work, digital commerce, and online life simultaneously.

October 2020Infrastructure

Starlink opens satellite internet to the public

A low-earth-orbit constellation begins public beta, delivering broadband to places cable was never going to reach.

May 7, 2021Cybersecurity

Colonial Pipeline and the ransomware industry

A single stolen password shuts down the largest fuel pipeline on the U.S. east coast, and ransomware becomes critical-infrastructure policy.

December 9, 2021Cybersecurity

Log4Shell exposes the open source supply chain

A flaw in a widely used Java logging library, maintained by a handful of unpaid volunteers, puts hundreds of millions of systems at risk.

October 27, 2022Social Web

Twitter is acquired and the social web fragments

Elon Musk buys Twitter for $44 billion, and the closest thing to a shared public square splinters into competing networks.

November 30, 2022AITurning point

ChatGPT launches

OpenAI releases ChatGPT, which reaches 100 million users in two months and sets off a race among every large tech company.

December 2022Search

Perplexity turns search into an answer engine

A startup ships a search box that answers in prose and cites its sources, and asking starts to replace searching.

February 7, 2023Search

Bard and the new Bing put chatbots in search

Google announces Bard and Microsoft relaunches Bing around an OpenAI model on back-to-back days, and search gets a chat box.

February 24, 2023AI

Meta's Llama makes frontier-class models downloadable

Meta publishes LLaMA to researchers, then releases Llama 2 free for commercial use, and open-weight AI becomes a real alternative.

March 14, 2023AI

Anthropic releases Claude

Anthropic opens Claude to the public through a chat interface and an API, with Notion, Quora, and DuckDuckGo among its first partners.

June 2023Social Web

The open API era ends

Reddit and Twitter price their APIs out of reach within months of each other, and the platforms close off the data AI was trained on.

2023AI

AI image and coding tools go mainstream

Image generators and coding assistants move from novelty to routine, and AI features become expected in every major product.

September 27, 2023AI

Mistral and Qwen widen the open-model race

A Paris startup releases a small Apache-licensed model that beats larger ones, and Alibaba's Qwen puts China in the open-weight race.

November 3, 2023AI

xAI launches Grok on X

Elon Musk's xAI releases Grok, a chatbot with live access to posts on X, then open-sources its first model and scales up on a 200,000-GPU cluster.

December 6, 2023AI

Google launches Gemini

Google DeepMind unveils Gemini in three sizes, folds Bard into it, and builds it into Search, Android, and Chrome.

March 6, 2024Commerce

The EU's Digital Markets Act applies to gatekeepers

Europe forces the largest platforms to allow alternative app stores, sideloading, and interoperable messaging.

May 13, 2024AI

GPT-4o makes voice and vision standard

OpenAI releases GPT-4o with real-time voice and vision, while Anthropic, Google, and Meta ship competing models within weeks.

May 14, 2024Search

Google puts AI answers above the search results

AI Overviews roll out to every U.S. Google user, and the top of the world's busiest results page becomes a generated answer.

July 19, 2024Cybersecurity

A bad update breaks 8.5 million computers

A faulty CrowdStrike configuration file crashes Windows machines worldwide, grounding flights and stopping hospitals and banks.

November 25, 2024Protocols

The Model Context Protocol connects AI to everything

Anthropic open-sources MCP, a standard way for AI assistants to reach tools and data, and OpenAI, Google, and Microsoft adopt it within six months.

January 20, 2025AITurning point

DeepSeek-R1 shakes the AI industry

A Chinese lab releases a reasoning model that matches OpenAI's o1 under an MIT license, tops the App Store, and wipes nearly $600 billion off Nvidia in a day.

2025AI

AI agents take on real work

AI systems move from answering questions to taking actions: browsing, writing and running code, and operating software for their users.

July 1, 2025Infrastructure

Cloudflare blocks AI crawlers by default

Cloudflare flips the open web from opt-out to opt-in for AI scraping and launches a pay-per-crawl marketplace for publishers.

September 2, 2025Search

Google keeps Chrome but loses exclusive defaults

A federal judge rejects a breakup of Google and instead bans exclusive default search deals and orders search data sharing.

September 16, 2025Commerce

AI agents get a way to pay

Google's AP2 and OpenAI and Stripe's Agentic Commerce Protocol give autonomous agents a standard way to check out on a user's behalf.

October 20, 2025Cloud

Three outages expose a centralized internet

AWS, Azure, and Cloudflare each fail within a month, taking down large parts of the web and reviving the argument about concentration risk.

October 21, 2025Browsers

The browser becomes an agent

OpenAI launches ChatGPT Atlas, a Chromium browser that navigates and acts on websites for you, and the browser wars restart around AI.

December 10, 2025Social Web

Australia bans social media for under-16s

The world's first national social media age limit takes effect, removing millions of teen accounts and pushing age assurance into the mainstream.

2026Infrastructure

Six billion people online

Internet users pass 6 billion, social media becomes a global supermajority, and more than 1 billion people use generative AI every month.

2026AITurning point

The web stops being majority human

Automated traffic passes human traffic, AI agents grow nearly 8,000% year over year, and roughly half of new online articles are machine-written.

2026Cybersecurity

A record year for breaches

Compromises track past 2025's record, the average breach cost hits an all-time high, and AI agents widen the attack surface.

August 2, 2026AI

The EU AI Act's high-risk rules come due

Obligations for high-risk AI systems reach their compliance date while a Digital Omnibus moves to postpone much of it to 2027 and 2028.

September 3, 2026AI

GPT-6 Astra and the computer-use era

OpenAI ships GPT-6 Astra with native computer use, and executives publicly argue it may represent the arrival of AGI.

September 8, 2026AI

Meta launches Muse, a personal AI agent

Meta ships Muse, an agent that uses its own secure computer to schedule, shop, and fill out forms for people across iOS, Android, and the web.

September 22, 2026AI

Claude Opus 5.5 brings Fable-level work to a cheaper model

Anthropic releases Claude Opus 5.5, which matches its top Fable model on most work at 40 percent less cost than Opus 5, on every major cloud.

Scale and impact

Internet by the numbers

The internet's growth from a four-node research network to a civilization-scale infrastructure, told in figures.

16M

Internet users in 1995

Less than 0.3% of the world population

6B+

Internet users in 2026

Roughly 73% of the global population

130

Websites in 1993

All hand-maintained by researchers

1.2B+

Websites in 2026

Roughly 20% of new content machine-written

~62%

Mobile share of web traffic

Up from near zero in 2007

370B+

Emails sent per day

More than 4 million per second

500 hrs

Video uploaded to YouTube per minute

More than humans could watch in centuries

$419B

Cloud infrastructure spend (2025)

AWS, Azure, and Google Cloud dominate

57.5%

Web requests made by bots

Automated traffic now outnumbers humans

1B+

Monthly generative AI users

Reached in roughly three years

+7,851%

Growth in AI agent web traffic

Year over year, agents that click and buy

$4.99M

Average cost of a data breach (2026)

$11.5M average in the United States

Internet adoption

% of World Population Online

1995

2000

2005

2010

2015

2020

2025

2026

0.4%~73%

The speed of adoption

From research tool to mass medium

Radio to 50M users38 years

TV to 50M users13 years

Internet to 50M users4 years

ChatGPT to 100M users2 months

Adoption speed reflects both technological maturity and the pre-existing infrastructure available at time of launch.

Methodology

About this project

Internet Era is a curated timeline built from publicly documented milestones in the history of the internet. It picks the moments that most shaped how the internet was built and used; no single page could hold a complete history.

Milestones were selected based on three criteria: technical significance (did this change how the internet works?), cultural impact (did this change how people use the internet?), and historical consensus (is this widely recognized as a defining event?).

Content is organized decade by decade, tracing how the internet moved from mid-century ideas about information and linked documents, through early research networks, to a global consumer medium that now runs on phones, the cloud, and AI.

Curation principles

Technical accuracy

Dates, names, and technical details sourced from primary records where available.

Why it mattered

Each milestone explains what happened and why it mattered.

Balanced coverage

Infrastructure and protocols receive equal weight to consumer-facing platforms.

Honest dating

Trends are dated to when they became significant, not when they first appeared.

Statistics are sourced from ITU, Statista, Internet Live Stats, and major platform disclosures. Figures are approximate and reflect the best available consensus at the time of writing. This is an educational project, and it makes no claim to be a journalistic or academic archive.