This document summarizes the history of Leisure World from 1963 to 1988 in Laguna Hills, California. Over these 25 years, the population grew from 0 to over 20,000 residents. Key developments included the construction of community centers, churches, golf courses, and residential buildings. Resale fees and the minimum age of residents increased over time. The administration of the community changed ownership on a few occasions. The document provides a high-level overview of the major events and growth during the first 25-year period of Leisure World.