May 31, 1924 (April 28) Jiazi, China and the Soviet Union signed the the "Russian Chinese Outline Agreement".

1924 31, China and the Soviet Union signed the "Russian Chinese to Outline Agreement", also known as the Sino-Soviet Agreement. Main elements: First, the abolition of all unequal treaties between China and Russia; Soviet Union to abandon Russia in China Concession lease; Soviet Union to abandon the Russian part of the Boxer Indemnity; four Soviet canceled extraterritoriality and consular Russia in China jurisdiction; Middle Eastern Railway agreed to be redeemed by the Chinese. Recognize Outer Mongolia is Chinese territory, China's full sovereignty in Outer Mongolia.