In 1974, Boston National Historical Park was established, and they also opened the National Park Service Visitor Center on State Street, giving out free maps and selling books.
Boston National Historical Park was established. This was in 1974. They also opened the National Park Service Visitor Center on State Street. This was in 1974. They also was giving out free maps. This was in 1974. They also was selling books. This was in 1974.