The Progressive Era
|Digital History ID 3143|
The United States was the first nation in the world to create wilderness parks. Theodore Roosevelt launched conservation as a national political movement. As president, he argued on behalf of conserving natural resources and preserving wild lands; he set aside the first national monuments and wildlife refuges. In 1906, he signed the Antiquities Act, which enabled a president to protect wild lands as national monuments. The Grand Canyon was among the places he protected under the act.