Hong Kong independence a Hong Kong representative in the Sino-British negotiation was rejected by Beijing. In 1984, the British and Chinese governments signed the Sino-British Joint Declaration which stated that the sovereignty of Hong Kong should be transferred to the PRC on 1 July 1997, and Hong Kong should enjoy a "high degree of autonomy" under the "One Country, Two Systems" principle. From 1983 to 1997, Hong Kong saw an exodus of emigrants to overseas countries, especially in the wake of the 1989 Tiananmen Square crackdown, which more than a million Hongkongers showed up on the streets to support to student protesters in
British nationality law and Hong Kong British nationality law and Hong Kong British nationality law as it pertains to Hong Kong has been unusual ever since Hong Kong became a British colony in 1842. From its beginning as a sparsely populated trading port to today's cosmopolitan international financial centre of over seven million people, the territory has attracted refugees, immigrants and expatriates alike searching for a new life. Citizenship matters were complicated by the fact that British nationality law treated those born in :Hong Kong as British subjects (although they did not enjoy full rights and citizenship), while the People's Republic of China did not recognise