Well alot of racial discrimination, but mainly The Memphis Race Riot, (May 1866), in the U.S. post-Civil War period, attack by members of the white majority on black residents of Memphis, Tennessee, illustrating Southern intransigence in the face of defeat and indicating unwillingness to share civil or social rights with the newly freed blacks.
This meant that settlers living in Texas were free to meet in convensions and talk about the problems they were facing freely with each other. They did not have to fear consequences because there were no officials around to stop them.