１、中国共产党成立。１９２１年７月，中国共产党第一次全国代表大会在上海召开，宣告中国共产党的成立。　　２、第一次国共合作和北伐战争。１９２３年６月，中国共产党第三次全国代表大会作出决定，采取共产党员以个人身份加入国民党的形式实现国共合作，共同进行国民革 1, the establishment of the Chinese Communist Party. In July 1921, the first national congress of the Chinese Communist Party was convened in Shanghai to declare the founding of the Chinese Communist Party. 2, the first cooperation between KMT and CPC and the Northern Expedition. In June 1923, the Third National Congress of the Communist Party of China made a decision that the communists should cooperate with each other in the form of joining the Kuomintang in their personal capacity to jointly carry out the National Revolution