Today, 185 years ago, on April 5, 1843 (March 6, 1843), the Hong Kong Charter was signed, officially declaring Hong Kong as a British colony. The official declaration of Hong Kong as a British colony was signed by Queen Victoria of England. The General Order of Hong Kong. The Hong Kong Treaty of 1842 (March 22, 1843) stipulated the assignment of Hong Kong to the United Kingdom, and on April 5, 1843 (March 23, 1843), the Queen Victoria of England signed the Hong Kong Charter, officially declared Hong Kong as a British colony, established the post of Hong Kong Governor General, appointed the Supreme Representative of the Chinese British Army as the first Governor and Governor of Hong Kong. In June, the Hong Kong Treaty of 1843 (March 23, 1856), immediately sworn in office, declared Hong Kong