Historical Questions of SEO Search Engine Optimization Here are top 20 historical SEO questions and answers covering key milestones from its inception to 2025: Early SEO (1990s - 2000s) When did SEO first emerge? SEO began in the mid-1990s when search engines like Yahoo and AltaVista became popular. What was the first major Google algorithm update? Google’s PageRank (1998) revolutionized search rankings by evaluating link authority. What was the impact of the Google Florida Update (2003)? It penalized keyword stuffing and low-quality backlinks, reshaping SEO strategies. How did the introduction of Google AdWords (2000) affect SEO? It created a paid search ecosystem , influencing organic and paid strategies. SEO Evolution (2010s) What was the significance of the Google Panda update (2011)? It targeted low-quality content , forcing websites to prioritize user experience. How did Google Penguin (2012) change link-building? It penalized spammy backlinks , emphas...