Timeline of events leading to the American Civil War colonial period in Virginia, slavery had been a part of the socioeconomic system of British North America and was recognized in the Thirteen Colonies at the time of the United States' Declaration of Independence (1776). Since then, events and statements by politicians and others brought forth differences, tensions and divisions between the people of the slave states of the Southern United States and the people of the free states of the Northern United States (including Western states) over the topics of slavery. The large underlying issue from which other issues developed was whether slavery should be retained and even expanded
United States Declaration of Independence view ultimately prevailed. "In Lincoln's hands," wrote Maier, "the Declaration of Independence became first and foremost a living document" with "a set of goals to be realized over time". Like Daniel Webster, James Wilson, and Joseph Story before him, Lincoln argued that the Declaration of Independence was a founding document of the United States, and that this had important implications for interpreting the Constitution, which had been ratified more than a decade after the Declaration. The Constitution did not use the word "equality", yet Lincoln believed that the concept that "all men are created equal" remained a part of the