Indiana's history began with Native American tribes, such as the Miami and Potawatomi, who inhabited the region long before European settlers arrived. In the early 1800s, Indiana became a U.S. territory and was admitted as the 19th state in 1816. The state played a significant role in the westward expansion and the development of the Underground Railroad during the 19th century. Throughout the 20th century, Indiana became known for its agriculture and manufacturing industries. The state is also recognized for its contributions to sports, particularly with the Indianapolis 500, one of the most famous auto races in the world. Today, Indiana continues to celebrate its rich cultural heritage and diverse communities.