Convention for the Extension of Hong Kong Territory
[3][4] In the Treaty of Nanking, in 1842, the Qing government agreed to make Hong Kong a Crown colony, ceding it 'in perpetuity', following the British victory in the First Opium War.Between 6 March and 8 April 1898, in the wake of China's defeat in the First Sino-Japanese War (1894–1895), the German government forced the Qing Empire into a 99-year lease of the Kiautschou Bay concession for a coaling station around Jiaozhou Bay on the southern coast of the Shandong Peninsula, to support a German global naval presence in direct opposition to the British network of global naval bases.[5] The contract was signed to give the British full jurisdiction of the newly acquired land that was necessary to ensure proper military defence of the colony around the island.The Chinese also started to pressure the British to return all of Hong Kong, taking the position that they would not accept so-called "unequal treaties" that were imposed on them by colonial powers.Consequently, at midnight following the evening of 30 June 1997, the entire dependent territory of Hong Kong officially reverted to Chinese sovereignty, ending British rule there 156 years after it began.