This book provides a comprehensive and erudite history of San Bernardino, California, exploring its multifaceted development from a frontier settlement to a dynamic urban center. Structured in 20 detailed chapters, the narrative delves into the city's geography, founding, demographic shifts, political evolution, economic transformations, and cultural and social life. Through in-depth analyses of key moments in history—from the establishment of irrigation systems by early Mormon settlers to the rise of the citrus industry and the impact of global trade—this work examines the role of technology, law, religion, sports, crime, immigration, and public figures in shaping the city's identity. Notably, the book highlights San Bernardino's pivotal position in national and global history, with a particular focus on its contributions to transportation, defense, and cultural integration. By tracing the evolution of San Bernardino's infrastructure, economy, and diverse population, this book offers valuable insights into how local history reflects broader social, economic, and political trends, making it a key resource for understanding both the city's past and its role in shaping the future of Southern California.