Discrimination and/or prejudice against disabled persons.

Abolitionism (also called the abolitionist movement) was a reform movement dedicated to ending slavery in the United States. Though abolitionism was at its most visible in the 19th century, abolitionism and abolitionist values existed for as long as the institution of slavery itself. Notable abolitionists include Fredrick Douglas (1817-1895), Harriet Tubman (1822-1913), John Mercer Langston (1829-1897), William Lloyd Garrison (1805-1879), John Brown (1800-1859), and Harriet Beecher Stowe (1811-1896).

A natural language spoken predominantly by deaf and mute people. ASL consists of hand gestures instead of audible sounds.