HTML Evolution: Key Tags from 1990 to HTML5

This document outlines the chronological evolution of HTML tags and CSS features from the web's inception in 1991 to 2024. It tracks the introduction, purpose, and eventual fate of various elements, illustrating HTML's growth from a basic set of 18 tags to over 140 elements, alongside CSS's development from simple style rules to robust layout systems. The overview highlights foundational tags that have endured, such as