Historic California Bear Flag as photographed in 1890. This flag, raised at Sonoma on June 14, 1846, was in the possession of the Society of California Pioneers at the time of the 1906 Great Earthquake and Fire, and burned during the conflagration.
According to the California Blue Book:
The flag was designed by William Todd, a nephew of Mary Todd (Mrs. Abraham) Lincoln on a piece of new unbleached cotton. The star imitated the lone star of Texas. A grizzly bear represented the many bears seen in the state. The word, California Republic was placed beneath the star and bear. The Bear Flag was replaced by the American flag. It was adopted by the 1911 State Legislature as the State Flag.