the First World War and lasted until 1921, when the provincial government established control over alcohol sales, a practice still in place today. Canada's first drug law came about following an inquiry conducted by the federal Minister of Labour and future Prime Minister, William Lyon Mackenzie King. King was sent to investigate damages claims resulting from a riot when the Asiatic Exclusion League led a rampage through Chinatown and Japan town. Two of the claimants were opium manufacturers, and after further investigation, King found that white women were reportedly frequenting opium dens as well as Chinese men. A federal law banning the manufacture, sale, and importation of opium for non-medicinal purposes was soon passed based on these revelations.
Amalgamation with Point Grey and South Vancouver gave the city its final boundaries not long before it became the third-largest metropolis in the country. As of January 1, 1929, the population of the enlarged Vancouver was 228,193
