2012 is the fifth time the two major parties have come on back - to - back weeks . Republicans issued their first party platform at their 1840 convention in Baltimore . Barry said in 1960 : ` ` Let 's grow up , conservatives . '' In 1964 , Lincoln supporters packed the hall after receiving counterfeit tickets .
2012 is the fifth time the two major conventions have come on back-to-back weeks . Democrats issued their first party platform at their 1840 convention in Baltimore . Barry Goldwater in 1960 : `` Let 's grow up , conservatives . '' In 1860 , Lincoln supporters packed the hall after receiving counterfeit tickets .