1797 Mission San Jose founded. First European settlement in area.
1800's Mission Embarcadaro on Alameda Creek
1842 Rancho Arroyo de la Alameda granted to Jose de Jesus Vallejo
1844 Rancho Petrero de los Cerritos granted to Alviso & Pacheco
1846 "The Brooklyn" arrives bringing first settlers.
1851 "Union City" laid out by James Horner Built Store, Church, Blacksmith Shop, and Schoolhouse
1851 Steamer "Union" makes trips to Yerba Buena
1852 First Stage Line, Horner Stage, running between Mission San Jose and Union City
1853 First County Seat located in New Haven
1853 First Alvarado School
1854 Union City and New Haven combined to form Alvarado
1855 County Seat moved to San Leandro
1862 Quigley Salt Works. First salt production in area.
1862 St. Anne's Catholic Church built in Alvarado (Smith & Watkins)
1863 Alvarado Guards, State Militia, formed
1867 Western Pacific Railroad run through what is now Decoto
1868 Cosmopoliton School District founded (Decoto)
1868 Earthquake. Shop of A.J. Lattin of Alvarado destroyed.
1870 E. H. Dyer founds Alvarado Sugar Beet factory.
1870 Decoto founded as a railroad town
1877 Alvarado Post Office opened
1878 South Pacific Coast Railroad put through Alvarado
1880 Population of Alvarado - 400.
1883 Decoto Grammer School Built
1890 First County Court House Burns
1896 Masonic Home cornerstone laid
1898 Masonic Home dedicated
1902 Alvarado Bank formed. Names changes to Bank of Alvarado County then to Central Bank.
1905 Alvarado Fire Department Formed
1906 "Our Lady of the Rosary" (Decoto) Church Founded
1909 Western Pacific Railroad put through Decoto
1922 Western Pacific Depot in Decoto moved to San Jose
1924 2nd Alvarado Grammer School built
1925 Decoto Fire Department Formed
1929 2nd Decoto Grammer School built
1929 Alvarado "Pioneer" Newspaper Founded
1930's Southern Pacific Station in Decoto Closed
1937 Pacific States Steel Founded
1941 Alvarado Sanitary District formed
1946 WWII Service Memorial Dedicated
1946 Alvarado "Pioneer" newspaper ends publication
1950 U.S. Pipe and Steel Factory built (then American Pipe Company)
1955 Central Pacific Station in Decoto torn down.
1959 Union City Incorporates
1959 Alvarado and Decoto Fire Departments merge into Union City Fire Department
1959 "Union City Leader" newspaper starts publication
1965 New Haven Unified School District formed
1966 Union City Police Dept. formed
1966 Union City Drive-In opened
1969 Alvarado Depot torn down
1972 BART Union City Station opens
1973 "Union City Leader" newspaper ends publication
1974 First Popular Vote Mayoral election
1974 First City-Wide Bus Service (The Flea) starts
1975 Holly Sugar beet sugar plant closed
1975 "Outlook" newspaper starts and stops publishing
1976 Civic Center Complex built (City Hall, Police, Library)
1977 Holly Sugar smoke stacks demolished
1977 Pacific States Steel closes
1985 First Gladiola Festival
1998 Union City Drive-In closed
1999 Union Landing Shopping Center opens |