<page_title> List of proposed etymologies of OK </page_title> <table> <cell> Initials of "Old Kinderhook" <col_header> Source </col_header> </cell> <cell> Nickname for Martin Van Buren, from his birthplace in Kinderhook, New York; used as a slogan in the 1840 presidential election <col_header> Context </col_header> </cell> </table>
Martin Van Buren was born in Kinderhook village and was known as "Old Kinderhook".