The revival also inspired slaves to demand freedom. In 1800, out of African-American revival meetings in Virginia, a plan for slave rebellion was devised by Gabriel Prosser, although the rebellion was discovered and crushed before it started. Despite white attempts to control independent African-American congregations, especially after the Nat Turner uprising of 1831, a number of African-American congregations managed to maintain their separation as independent congregations in Baptist associations. State legislatures passed laws requiring them always to have a white man present at their worship meetings.