At the Democratic National Convention held in Institute Hall in Charleston, South Carolina, in April 1860, 50 Southern Democrats walked out over a platform dispute, led by the extreme pro-slavery "Fire-Eater" William Lowndes Yancey and the Alabama delegation: following them were the entire delegations of Florida, Georgia, Louisiana, Mississippi, South Carolina and Texas, three of the four delegates from Arkansas, and one of the three delegates from Delaware.