Digital History
Digital History: "Bleeding Kansas" and "Bleeding Sumner"
Read about how the concept of popular sovereignty expressed in the Kansas-Nebraska Act resulted in political intrigue and murder in Kansas and the caning of a U.S. Senator in the Senate chamber.
PBS
Pbs: American Experience: John Brown's Holy War: Pottawatomie Massacre
PBS provides information on John Brown's involvement in the Pottawatomie Massacre and the reasons behind the massacre.
The White House
The White House: Presidents: Martin Van Buren
The White House's official site gives an overview of the life and presidency of the eighth President of the United States, Martin Van Buren. A black and white photo is included.
Siteseen
Siteseen: Government and Constitution: Free Soil Party
This article contains an overview of the history of the Free Soil Party, its leaders, their beliefs, and eventually joined with the National Union Party to form the newly formed Republican Party in 1854.