This clip provides an overview of the rise and fall of the Ku Klux Klan. It also outlines the factors that led to its popularity, its values, how it has transformed over time, and its downfall.

Cesar Chavez threatens to expel anyone from the union who doesn't protest peacfully in the face of violence.

Dr. Martin Luther King, Jr. and Ralph Abernathy reflect while in a jail cell after taking part in Civil Rights protests.

Dr. Martin Luther King leads thousands of marchers out on the Edmund Pettus Bridge in Selma, Alabama. He then holds a prayer session in the middle of the bridge and leads the marchers off the bridge to respect a court order.

A short biography on Abraham Lincoln's life, from his beginnings to the Presidency.