Hong Kong Set for Return: Sino-British Declaration Signed

Margaret Thatcher and Deng Xiaoping signed away 150 years of colonial rule with a handshake and a promise. On December 19, 1984, the Sino-British Joint Declaration was signed in Beijing, stipulating that the United Kingdom would transfer sovereignty over Hong Kong to China on July 1, 1997. The agreement guaranteed that Hong Kong's capitalist system would remain unchanged for fifty years under "one country, two systems." Britain had controlled Hong Kong since the First Opium War. Hong Kong Island was ceded in 1842, Kowloon in 1860, and the New Territories leased for ninety-nine years in 1898. By the 1980s, the approaching expiration of the New Territories lease forced negotiations, since the leased land comprised over ninety percent of the territory. Thatcher initially hoped to negotiate continued British administration, but Deng made sovereignty non-negotiable. China would take Hong Kong back; the only question was whether the transition would be orderly or chaotic. Two years of negotiations produced the Joint Declaration, which promised a high degree of autonomy, an independent judiciary, freedom of speech, and continuation of common-law governance. The agreement was registered as a UN treaty. Hong Kong's business community, initially fearful, was reassured by the detailed protections. Emigration spiked nonetheless, with hundreds of thousands obtaining foreign passports as insurance. The handover proceeded on July 1, 1997, in a ceremony attended by Prince Charles and Chinese President Jiang Zemin. Whether Beijing has honored the declaration's spirit has been fiercely contested, particularly after the 2020 National Security Law curtailed many of the freedoms the agreement was designed to protect.