Theodore Roosevelt became the first US president to visit another country while in office, visiting Puerto Rico and Panama.
Source
Theodore Roosevelt was nominated for US president by the Progressive Party.
Theodore Roosevelt became the first US President to fly in an airplane.
The Grand Canyon National Monument was created.
President Theodore Roosevelt changed the name of the 'Executive Mansion' to 'The White House.'
Theodore Roosevelt became the US president after former president William McKinley died from gunshot wounds.