Hayward Area Historical Society (HAHS) is a nonprofit organization dedicated to documenting the history of the city of Hayward, California and adjacent communities.[1][2][3] These areas include San Lorenzo, Ashland, Cherryland,[4] Castro Valley, Fairview, the former communities of Russell City, Mount Eden, Schafer Park, and other parts of unincorporated Alameda County. The society was founded in 1956.[5] Their museum in Downtown Hayward closed in 2012.[6][7][8] Their new facility opened nearby in 2014.[9]