Americans have continually gathered here in the shadow of Independence Hall to explore, celebrate, contemplate, and challenge the ideals embodied in the Declaration of Independence and U.S. Constitution. Abolitionist Frederick Douglass delivered a speech against slaveholding on Independence Square in 1844. Suffragist Susan B. Anthony raised an outcry at the Centennial celebration on July 4, 1876, using this space to link the principles of the Declaration of Independence with women's voting rights. Activist Barbara Gittings protested here with other lesbian and gay rights demonstrators in the 1960s, seeking inclusion in "We the People." President-elect Abraham Lincoln pondered inside Independence Hall in 1861 the meaning of the words "all men are created equal," saying there was "something in the Declaration giving liberty, not alone to the people of this country, but hope to the world for all future time." The ideas of liberty and self-government proposed and tested in these halls and on these grounds still echo through people's lives, challenging and inspiring people around the world, and the universal principles of freedom and democracy proclaimed here have distinguished Independence Hall as a UNESCO World Heritage Site.