Source No 2 California is the 31st state admitted to the Union. Source No 2 Source No 2 California is the 31st state admitted to the Union. California is the 31st state admitted to the Union. Source No 2 California Statehood Source No 2 Source No 2 California Statehood California is the 31st state admitted to the Union. Source No 2 Source No 2 Source No 2 California is the 31st state admitted to the Union. Source No 2 California is the 31st state admitted to the Union. California is the 31st state admitted to the Union. Source No 2 Source No 2 Source No 2 Source No 2 California is the 31st state admitted to the Union. Source No 2 Source No 2 California is the 31st state admitted to the Union. Source No 2 California is the 31st state admitted to the Union. Source No 2 California Statehood Source No 2 California Statehood Source No 2 Source No 2 Source No 2 Source No 2 Source No 2 Source No 2 California Statehood Source No 2