This lecture explores the historical significance, nature, and causes of the Boxer Rebellion, focusing particularly on events in Beijing in the year 1900. It explores why the movement is important, highlighting its impact on China's international reputation, its role as the last stand of Chinese conservatism, and its devastating aftermath, including financial repercussions and foreign intervention. Additionally, the lecture examines the nature of the Boxers, tracing their origins as a dissident Buddhist sect and their evolution into an anti-dynastic and anti-foreign organization. Furthermore, it delves into the unusual climatic conditions and hostility towards foreigners that fueled the rebellion, as well as the spread of rumors and tensions between missionaries and local elites.