<page_title> United States presidential nominating convention </page_title> <section_title> Significant third-party conventions before 1860 </section_title> <table> <cell> Anti-Masonic <col_header> Party </col_header> </cell> <cell> Baltimore <col_header> City </col_header> </cell> <cell> 1831 <col_header> Year </col_header> </cell> </table>
In 1831 the Anti-Masonic Party convened in Baltimore.