The article focuses on the keyword “What event happened 700 million years ago” and addresses the search intent of users looking to understand significant historical events in Earth’s geological timeline. It offers informative content about a pivotal period in Earth’s history, highlighting the evolution of life and geological changes that occurred during that time. The article aims to enrich readers’ knowledge of Earth’s past and its implications for the present, making it a valuable resource for webmasters seeking to provide educational content on geological history.