The history of the Tlingit includes pre- and post-contact events and stories. Tradition-based history involved creation stories, the Raven Cycle and other tangentially-related events during the mythic age when spirits transformed back and forth from animal to human and back, the migration story of arrival at Tlingit lands, and individual clan histories. More recent tales describe events near the time of the first contact with Europeans. European and American historical records come into play at that point; although modern Tlingit have access to those historical records, however, they maintain their own record of ancestors and events important to them against the background of a changing world.