What is frontier in American history? Give the definition by using simple wording

Answer 1

In American history, the "frontier" refers to the land and territory that was newly explored or settled in the western parts of the country, especially during the 19th century. It symbolizes the edge of civilization, where pioneers moved to find new opportunities, resources, and a fresh start. This often involved challenges like building homes, farming, and interacting with Native American tribes who already lived there. The idea of the frontier is important because it shaped American identity and values, like independence and adventure.