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  The Treaty of Nanking started to end the first opium war.
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  The second opium war ended at 1860.
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  The japanese occupied Hong Kong for three years and eight months. So it ended in 1945.
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  The hong kong mtr finally opened at 1979.
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  Margret Thatcher and Deng Xiaoping to discusses about the future of Hong Kong
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  Margaret Thatcher announces that the whole of Hong Kong is to be handed back to China at midnight on June 30th 1997
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  At 1997, 1st of July, British gave Hong Kong back to China.
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  SARS is a respiratory disease which made a lot of people in Hong Kong die and it ended in July.
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  The swine flu made schools close down and also killed a lot of people in 2009