Due to a special event taking place in the U.S. Capitol on Thursday, September 18, there will be no tours of the U.S. Capitol that day until approximately noon. The Capitol Visitor Center will remain open during this time, and guided tours in the Capitol Visitor Center will be available.
Antislavery campaigns developed during the nation's founding period. Pennsylvania Quakers were active abolitionists who believed slavery violated their religious values and contradicted fundamental principles of liberty and equality. For nearly a century, civic and religious antislavery associations regularly petitioned Congress to prohibit slavery. Although Congress banned the importation of slaves in 1808, the institution of slavery did not end until after the Civil War with the adoption of the 13th Amendment in December 1865.