History of Sonoma, California
Origins
The region of Sonoma was originally the home of Native American Coast Miwok tribes as well as the Pomo people and Wintuns. Many of the Native Americans still remain, even after seven changes in government since the Spanish first explored and took over the region.
The town of Sonoma, El Pueblo de Sonoma, began with the Mission San Francisco Solano founded in 1823 by Father Joseph Altimira of Spain. This mission was the farthest north of all 21 California missions connected by a "Royal Road" called El Camino Real. The Mission San Francisco Solano was the sole California mission established under the rule of a newly-independent Mexico, and the last. Soon after it was built, it was secularized by the Mexican government, under the orders of Lieutenant, later General, Mariano Guadalupe Vallejo. Under Vallejo's supervision, the El Presidio de Sonoma, or Sonoma Barracks (part of Spain's Fourth Military District), was built beside the mission for the army, and he pursued control and order in the region over the native tribes and kept a military eye on the Russians of Fort Ross. Vallejo's relationship with the Native Americans of the region was helped by another resident of Sonoma. The resident was his friend and ally - the native called Chief (Sem-Yeto) Solano of the Suisunes who had been baptized at the mission.
Plaza
El Pueblo de Sonoma was laid out in the standard form of a Mexican town, centered around the largest plaza in California. This plaza is surrounded by many historical buildings, including the Mission San Francisco Solano, Captain Salvador Vallejo's Casa Grande, the Presidio of Sonoma, the Blue Wing Inn, and the Toscano Hotel. In the middle of the plaza, Sonoma's early 20th-century city hall, at the plaza's center and still in use, was designed and built with four identical sides in order not to offend the merchants on any one side of the plaza. The plaza is a National Historic Landmark and still serves as the town's focal point, hosting many community festivals and drawing tourists all year round. It provides a central tourist attraction. It is also the location of the Farmer's Market, held every Tuesday in the summer.
American revolt against Mexican rule
Sonoma is known as the birthplace of American California, for it was in this town plaza that the Bear Flag Revolt took place and a Bear Flag was first raised on June 14, 1846. The rebelling men claimed to act on the orders of Col. John C. Fremont proclaiming independence from Mexican rule and a free country called the California Republic here. Sonoma served as the capital of the short-lived California Republic until the United States Stars and Stripes flag was raised during the Mexican-American war.
General Vallejo was imprisoned during the Bear Flag Revolt of 1846, and he later transferred his allegiance to the U.S. and endorsed California statehood (1850). With his amassed land holdings, Vallejo guided the development of the town of Sonoma. He was one of the most powerful residents in the town's history, dividing up the lands into large ranches for friends and family.