The purpose of this legislation is to officially designate the Quindaro Townsite in Kansas City, Kansas, as a National Historic Landmark. This designation aims to recognize the town's significant historical role, particularly in the context of the struggle over slavery in the United States during the mid-19th century. Key provisions of the legislation include the formal designation of the Quindaro Townsite as a National Historic Landmark, which is already listed on the National Register of Historic Places.