The California state flag was adopted by the State Legislature in 1911. On June 14, 1846, a small band of settlers marched on the Mexican garrison at Sonoma and took the commandant, Mariano Vallejo, prisoner. They issued a proclamation which declared California to be a Republic independent of Mexico. This uprising became known as the Bear Flag Revolt after the hastily designed flag depicting a grizzly bear and a five pointed star over a red bar and the words "California Republic." The grizzly bear was a symbol of great strength while the lone star made reference to the lone Star of Texas. The flag only flew until July 9, 1846 when it was learned that Mexico and the United States were already at war. Soon after, the Bear Flag was replaced with the American flag.
California flags for outdoor use are constructed of a durable nylon fabric especially developed for flag use. Nylon's tight weave provides maximum beauty and flyability as well as brilliant, fast colors. Its weave helps shed pollution, dirt and grime that the looser weave alternatives absorb. Nylon is water repellent and mildew resistant.