They organized secret societies and raiding parties. The most notorious was the Ku Klux Klan. These societies often rode in groups and raid
settlements where former slaves lived. Many were hurt and killed by these
mobs. Apart from former slaves and
Blacks, they also assaulted Whites who support the Republican programs.
<span> Periodization can help historians know when an event occured. This can also help historians learn the cause and effect of another time in history.</span>
Railroads brought crops and food to cities in the East, and settlers to farms in the Great Plains
