This book examines the history and major events of the Communist Party of China (the CPC) through the context of how the CPC has responding to the new challenges of each era. It views the history of the Party as a history of constantly responding to new challenges, a history of correctly assessing situations, a history of following the tide of the times, and a history of triumph. The book ultimately focuses the lens on the Party's real development. It points out that the CPC shall be guided by the “Five Primary Concepts of Development” and driven by the goal of “catching up with the times”. The Party shall use scientific methods in making any forecasts, maintain the morale to keep abreast with the pace of the times and never forget the overarching ideal as it moves forward. By doing so, the CPC will be able to tirelessly follow the tide of the times, bravely face off against new challenges, act as the leader of each era, and forever maintain its progressiveness.