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 Hong Kong the Chinese, the Second Convention of Peking was signed on 9 June. Since the foreign powers had agreed by the late 19th century that it was no longer permissible to acquire outright sovereignty over any parcel of Chinese territory, and in keeping with the other territorial cessions China made to Russia, Germany and France that same year, the extension of Hong Kong took the form of a 99-year lease. The lease consisted of the rest of Kowloon south of the Shenzhen River and 230 islands, which became known as the New Territories. The British formally took possession on 16 April