-16 16: according to Ji, after this year, the Qing army sent 400 people to patrol the island, but they withdrew because there was no external threat.

-/kloc-mid-0/7th century: Tsar Cossack soldiers were burned to death in the Heilongjiang River basin, including the island.

-1689: The Sino-Russian Nebuchadnezzar Chu Treaty signed by the Qing government and Russia stipulates that the south of the Outer Xing 'an Mountains is the territory of China, and now China's understanding is that Sakhalin Island is included.

-1635: Matsumae sent village cleaner Saemon to inspect the island.

-1644: Matsumae of the edo shogunate proposed to draw a map for the whole country, with the aim of "drawing for the protection of the kingdom". For the first time, Hokkaido and Sakhalin Island, which were originally inhabited by local aborigines, were included in the Japanese territory.

-1679: Kudan in Jiuchun of Songqian Mountain Cave Array House established Dabo Town on this island. The Japanese began to explore the fishing grounds on the island.

-1709: The Qing emperor sent three Jesuit monks to survey the national territory.

-Because the Qing government did not formally station troops on the island, Russia sent an expedition (consisting of soldiers and prisoners) to attack the northern end of Sakhalin Island, slaughter Hezhe people, build camps and mine coal mines.

-1789: Russia occupied the southern part of Kudao, forced Hezhe people to return to the mainland, and built halls, churches, prisons, schools and other buildings in the mother-child shop.

-1790: Matsui and Noi Takasuke were sent to spy on the island and set up a market in Baizhu at the southern end of the island. On the other hand, Japan sent people to discuss with Russia to carve up the island.

-1799: The southern part of the island and Xiayidi became the direct jurisdiction of the shogunate, and the island completely lost its independent status.

During Russian rule,

-1May 7, 875: Japan and Russia signed "Huatai? The Kuril Islands exchanged treaties, and Russia gave the Kuril Islands to Japan, demanding that Japan no longer declare its rights to Sakhalin Island. Japan announced that it had completely abandoned the ownership of the island, and the whole island was ruled by Russia.

-1905: In the Russo-Japanese War, the Japanese army completely occupied the island.

North-south partition period

-1September 5, 905: According to the Portsmouth Peace Treaty after the Russo-Japanese War, Russia needs to cede the territory south of the island at 50 degrees north latitude and Japan. Japan has set up Huatai Civil Affairs Department in ceded land.

-1March 907 15: Huatai Civil Affairs Department was upgraded to Huatai Hall.

-65438+March 3 1 0908: The Japanese Ministry of Interior issued a notice to change the Japanese-style Chinese notation of place names.

-1965438+June 26th, 2005: The order number issued by Japan is 10 1, and it was set in South Huatai 15233.

-19 18: Japan used the Russian October Revolution to send troops to Siberia again and occupied the northern part of the island until 1925.

The Second World War

-1 942165438+1October1:The provincial offices such as Tuowu Province were merged into Greater East Asia Province due to unified planning. Huatai Hall was changed to the Ministry of the Interior.

-1August 8, 945: The Soviet Union attacked the island and took full control of it on August 28.

Post-war period

-1February 2, 946: The Soviet Union issued a statement that they owned the whole island and the Thousand Islands.

-1951September 8: Japan issued a declaration, renouncing the ownership of the island completely.