Communist Party of China Founding Day is observed in China every July 1. This public holiday commemorates the founding of the Communist Party of China (CPC), which originated from the May Fourth Movement of 1919, an anti-imperialist and cultural movement led by figures such as Chen Duxiu and Li Dazhao. The CPC was officially established in 1921, following several illegal meetings that culminated in the First National Congress on July 1. The party's ultimate goal was to build socialism in China, and it played a crucial role in the establishment of the People's Republic of China. Today, the CPC is the world's largest political party, boasting a membership of over 86 million people. Celebrations typically include various events that honor the party's history and achievements.