【正文】
s prodigious agricultural production in the Central Valley and elsewhere. During the early 20th century, migration to California accelerated with the pletion of major transcontinental highways like the Lincoln Highway and Route 66. In the period from 1900 to 1965, the population grew from fewer than one million to bee the most populous state in the Union. Since 1965, the population has became one of the most diverse in the world. The state is regarded as a world center of technology and engineering businesses, of the entertainment and music industries, and as the . center of agricultural production. 。s first and only president was William B. Ide,[10] who played a pivotal role during the Bear Flag Revolt. His term lasted twentyfive days and concluded when California was occupied by . forces during the MexicanAmerican War. The California Republic was short lived. The same year marked the outbreak of the MexicanAmerican War (1846– 1848). When Commodore John D. Sloat of the United States Navy sailed into Monterey Bay and began the military occupation of California by the United States. Northern California capitulated in less than a month to the . forces. After a series of defensive battles in Southern California, including The Siege of Los Angeles, the Battle of Dominguez Rancho, the Battle of San Pasc