working on the rancho and their families. Post-conquest era After the American conquest of California, Mexico signed the Treaty of Guadalupe Hidalgo, which gave Mexicans and Californios living in state certain unalienable rights. U.S. government sovereignty in California began on February 2, 1848. In the 1870s, the Los Angeles and Independence Railroad connected Santa Monica with Los Angeles, and a wharf out into the bay. The first town hall was an 1873 brick building, later a beer hall, and now part of the Santa Monica Hostel. By 1885, the town's first hotel was the Santa Monica Hotel. Amusement piers became popular in the first decades of the 20th century and the extensive Pacific Electric Railway brought people to the city's beaches from across the Greater Los Angeles Area. Around the start of the 20th century, a growing population of Asian Americans lived in and around Santa Monica and Venice. A Japanese fishing village was near the Long Wharf while small numbers of Chinese lived or worked in Santa Monica and Venice. The two ethnic minorities were often viewed differently by White Americans, who were often well-disposed toward the Japanese but condescending to the Chinese. The Japanese village fishermen were an integral economic part of the Santa Monica Bay community. Donald Wills Douglas Sr. built a plant in 1922 at Clover Field (Santa Monica Airport) for the Douglas Aircraft Company. In 1924, four Douglas-built planes took off from Clover Field to attempt the first aerial circumnavigation of the world. Two planes returned after covering in 175 days, and were greeted on their return September 23, 1924, by a crowd of 200,000. The Douglas Company (later McDonnell Douglas) kept facilities in the city until the 1970s. The Great Depression hit Santa Monica deeply. One report gives citywide employment in 1933 of just 1,000. Hotels and office building owners went bankrupt. In the 1930s, corruption infected Santa Monica (along with neighboring Los Angeles). The federal Works Project Administration helped build several buildings, most notably City Hall. The main Post Office and Barnum Hall (Santa Monica High School auditorium) were also among other WPA projects. Modern era Douglas's business grew with the onset of World War II, employing as many as 44,000 people in 1943. To defend against air attack, set designers from the Warner Brothers Studios prepared elaborate camouflage that disguised the factory and airfield. The RAND Corporation began as a project of