What are the signs of the beginning and end of the frenzy of the great powers to carve up China? why

Treaty of nanking: With the signing of treaty of nanking, China's sovereignty integrity was destroyed and it was involved in the capitalist world market. Great changes have taken place in the historical process of China, which began to become a semi-feudal and semi-colonial society.

Treaty of shimonoseki: China ceded Liaodong Peninsula (but failed due to triple interference), Taiwan Province Island and its affiliated islands, and Penghu Islands to Japan, and paid Japan 200 million taels of silver. China has also opened Shashi, Chungking, Suzhou and Hangzhou as trading ports, and allowed Japanese to invest and set up factories in trading ports in China.

The Treaty of Sorrow and Sorrow: This treaty marks that the Qing government has completely become a tool for imperialism to rule China, and China has completely become a semi-colonial and semi-feudal society, which has seriously violated China's sovereignty and brought a heavy burden to the people. This treaty is another slavery treaty imposed on China by imperialist powers. Its signing further strengthened the imperialists' comprehensive control and plunder of China, and marked that China had completely become a semi-colonial and semi-feudal society.

The Second Opium War, Tianjin Treaty and Beijing Treaty deepened the semi-colonial and semi-feudal degree of China.