The Constitution of California (Spanish: Constitución de California) is the primary organizing law for the U.S. state of California, describing the duties, powers, structures and functions of the government of California. California's original constitution was drafted in both English and Spanish by American pioneers, European settlers, and Californios (Hispanics of California) and adopted at the 1849 Constitutional Convention of Monterey, following the American Conquest of California and the Mexican-American War and in advance of California's Admission to the Union in 1850. The constitution was amended and ratified on 7 May 1879, following the Sacramento Convention of 1878-79.