Antiquities Act of 1906
On June 8, 1906, President Theodore Roosevelt signed the Antiquities Act into law, giving him and future presidents the authority to create national monuments from federal lands.
Roosevelt was an avid outdoorsman. After the death of his first wife in 1884, Roosevelt moved to the North Dakota Badlands where he set up a ranch. When Roosevelt first came to the Badlands, it was as a hunter. But it was his interest in livestock and cattle ranching that made him stay.