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What HTML Actually Is · Lesson 2 of 18

A Brief History of HTML

A free lesson from Swipe Coding · HTML, level 1 · updated October 2026

By the Swipe team, founded by Colin · how we make lessons

HTML was created in 1991 by Tim Berners-Lee, a researcher at CERN, as a way to link scientific documents together so people could jump between related papers by clicking. That original version had only about 18 tags.

🤖
From 18 tags to an entire web platform. Not bad for one researcher. 📜

Through the 1990s, HTML went through several versions as more browsers and companies got involved, each adding new tags for things like tables, forms, and images. This period was messy — different browsers supported different tags, and pages often looked different depending on which browser opened them.

HTML5, released in 2014, is the version this track teaches and the one every modern browser supports today. It added semantic tags (which describe meaning, not just appearance), native support for audio and video, and cleaned up a lot of the inconsistency from earlier versions.

Quick check

Who created HTML, and why?

Fill in the blank

____, released in 2014, is the version of HTML every modern browser supports today.

True or false

The very first version of HTML in 1991 already had support for audio and video.

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