Marxist ideas started to spread widely in China after the 1919 May Fourth Movement. In June 1920, Comintern agent Grigori Voitinsky was sent to China, and met Li Dazhao and other reformers. He financed the founding of the Socialist Youth Corps. The Communist Party of China was initially founded by Chen Duxiu and Li Dazhao in the French concession of Shanghai in 1921 as a study society and an informal network. There were informal groups in China in 1920, and also overseas, but the official beginning was the 1st Congress held in Shanghai and attended by 12 men in July 1921 and later transferred from Shanghai to Jiaxing. The birth of the party (then having some 50 to 60 members) was declared here in a boat on South Lake. It is therefore considered by the Chinese to be one of the most important historical places of the revolution. The formal and unified name Zhōngguó Gòngchǎn Dǎng (Chinese Communist Party) was adopted and all other names of communist groups were dropped and the final agenda was carried out. The key players were Li Dazhao, Chen Duxiu, Chen Gongbo, Tan Pingshan, Zhang Guotao, He Mengxiong, Lou Zhanglong and Deng Zhongxia. Mao Zedong was present at the first congress as one of two delegates from a Hunan communist group. Other attendees included Dong Biwu, Li Hanjun, Li Da, Chen Tanqiu, Liu Renjing, Zhou Fohai, He Shuheng, Deng Enming, and two representatives from the Comintern, one of them being Henk Sneevliet (also known by the single name 'Maring'. Notably absent at this early point were future leaders Li Lisan and Qu Qiubai.
