The last six words of the Gettysburg Address are "shall not perish from the Earth," according to the Gettysburg Foundation, a preservation society that works with the National Park Service. Abraham Lincoln used these words in 1863 to describe the nation and its democratic government.
The Library of Congress website states that Lincoln delivered the short speech at a service to dedicate the Soldiers' National Cemetery at Gettysburg. There are five existing manuscript copies of the speech, and there are some differences among the versions. However, the Gettysburg Foundation asserts that the final six words are the same in every copy,