San Francisco the time. San Francisco became a consolidated city-county in 1856. San Francisco's status as the West Coast's largest city peaked between 1870 and 1900, when around 25% of California's population resided in the city proper. After three-quarters of the city was destroyed by the 1906 earthquake and fire, San Francisco was quickly rebuilt, hosting the Panama-Pacific International Exposition nine years later. In World War II, San Francisco was a major port of embarkation for service members shipping out to the Pacific Theater. It then became the birthplace of the United Nations in 1945. After the war, the confluence of returning
San Francisco International Airport on a routing of San Francisco – Honolulu – Tokyo. Also in 1961, Lufthansa had begun serving SFO with Boeing 707s operating a routing of San Francisco – Montreal Dorval Airport – Paris Orly Airport – Frankfurt three days a week. Lufthansa then operated Boeing 720B jets on this same routing in 1963 and was also flying Boeing 707 service to Frankfurt via stops in Montreal and London Heathrow Airport the same year. By 1965, Pan American-Grace Airways, known as Panagra, was operating Douglas DC-8 jets on an international routing of San Francisco – Los Angeles – Panama City, Panama