Segregation and The Civil Rights Movement Segregation was an attempt by white Southerners to separate the races in every sphere of life and to achieve supremacy over blacks. Segregation was often called the Jim Crow system, after a minstrel show character from the 1830s who was an old, crippled, black slave who embodied negative stereotypes of blacks. Segregation became common in Southern states following the end of Reconstruction in 1877. During Reconstruction, which followed the Civil War (1861-1865), Republican governments in the Southern states were run by blacks, Northerners, and some sympathetic Southerners. The R