At midnight on June 30/July 1, 1997, Hong Kong ceased to be a British Crown Colony and became a Special Administrative Region (SAR) of the People's Republic of China. The ceremony at the Hong Kong Convention and Exhibition Centre marked the end of 156 years of British administration, beginning with the 1841 occupation during the First Opium War and formalized by the 1842 Treaty of Nanking.
The handover was governed by the 1984 Sino-British Joint Declaration, which guaranteed Hong Kong's capitalist system, legal framework, currency, and way of life for 50 years (until 2047) under the principle of "one country, two systems." The Basic Law serves as the SAR's mini-constitution.
The handover was a pivotal moment in post-colonial history. While Hong Kong retains distinct freedoms and systems, ongoing tensions over autonomy, democracy, and Beijing's influence continue to shape its trajectory.