This lightning talk summarizes the history of search engine optimization (SEO) in 3 minutes or less. It outlines 20 major events and developments in SEO from 1990 to 2015, including the creation of the World Wide Web, early search engines, the launch of Google, the introduction of Google's PageRank algorithm, and other important Google updates. The talk also lists challenges and donation amounts associated with a charity fundraiser where attendees can win prizes by correctly stating SEO terms.