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China ceded Taiwan and Diaoyutai Islands to Japan after Sino-Japan War under the Shimonoseki Treaty.
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Japan surrendered, Taiwan returned to China under Cairo and Potsdom Declarations.
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The U.S. government administrated Okinawa and the Diaoyutai under San Francisco Treaty
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The United Nations reported that there might be existing of hydrocarbon deposit in the waters off Diaoyutai
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The U.S. and Japan signed the Okinawa Reversion Treaty which included Diaoyutai Islands as part of Okinawa
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More than five thousands students protested against Japan in the United States.
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The Japanese government claimed sovereignty over Diaoyutai Islands following Chinese government's formal claim
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Japan established official relationship with China. Two governments agreed to shelve the issue
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Japan expelled Taiwanese boats operated around the Diaoyutai Islands
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The Japanese government recognized the lighthouse which was made by the right-wing group in the Diaoyutai Island.
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China formally protested again Japanese action in Diaoyutai dispute.
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China passed the territorial sea law, which included the Diaoyutai as part of China's territory
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Japanese Youth Federation illegally erected another lighthouse. Again, Chinese held even larger activities to protect the Diaoyutai Islands
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A young man from Hong Kong by the name of David Chan went to Diaoyu Islands on a rented boat named HKS Bao-Diao, flying the national flag of China, in an attempt to claim Chinese sovereignty over the Diaoyu Islands.
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Thousands of fishing boats set off from Jilong, Taiwan and successfully reached Diaoyu Islands.
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Global Chinese Diaoyu Islands Forum was held in Xiamen, China and China Federation of Defend ing Diaoyudao Islands Limited was founded.
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A group of seven people from mainland China successfully arrived at Diaoyu Islands for the first time.
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Macao Diaoyutai Action Committee was established
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Taiwan fishing boat 'United' was stroke by Japanese patrol boats and sank. The captain and two crews were kept by Japanese Government for three days
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Twelve people from Taiwan set out to Diaoyu Islands to declare sovereignty and went back after a voyage around the islands for a week
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Chinese Association for protecting Diaoyu Islands was set up in Yonghe, Taiwan
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The official ocean monitoring ships 45 & 46 from mailand China entered the waters 12 miles around Diaoyu Islands
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When Chinese Premier Wen Jiabao met with Prime Minister of Japan Asō Tarō, they had a controversy over the sovereignty of Diaoyu Islands
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People from both mainland China and Hongkong held protests and demonstration outside Japanese Consulates
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Overseas Chinese from Taiwan, mainland China, Macao and Hongkong gathered in front of Japanese Consulate General in New York, which was the largest local demonstration for the past 20 years
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World Chinese Federation for the Protection of Diaoyu Islands (WCFPDI) was founded in Hongkong
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Five members of WCFPDI set off to Diaoyu Islands to declare sovereignty and finally got to the area within Japan's control
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As a response to Japanese right-wingers' action of landing on the islands, Diaoyu Islands protectors from Hongkong placed national flag of China on these islands
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Janpanese Government signed the contract of purchasing Diaoyu Islands and nationalized them. Chinese Ocean surveillance ships headed to the waters around these islands and declared sovereignty
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People in metroplitan cities in China, such as Beijing, Shanghai, Guangzhou and Hongkong held protests and demonstrations against Japan
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As approved by Chinese Sate Council, Ministry of Civil Affairs and Chinese National Bureau of Oeanography published the accurate names and locations of the islands and the waters around them
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America and Japan held joint military drill in the sea areas around Diaoyu Islands
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Taiwan Diaoyu Islands Protecting Association planned to send a statue of Matsu to the islands but was obstructed by Japanese official boats on its journey