Transportation
- at Kill Devil Hills, near Kitty Hawk, North Carolina.
- American becomes the first woman pilot when she flies a Santos-Dumont dirigible in Paris.
- Norwegian explorer Roald Amundsen begins the first successful navigation of the .
- Voters authorize the creation of the .
- The first stage of New York City's nears completion.
- The carries its first traffic between Manhattan and Brooklyn.
- The is founded in Flint, Michigan.
- The is incorporated in Detroit, Michigan.
- William S. Harley and Walter and Arthur Davidson build their first in Milwaukee, Wisconsin.
- Dr. Horatio Nelson Jackson of Burlington, Vermont, completes the , from San Francisco to New York. The United States has about 8,000 cars but only about 150 miles of paved roads.
- New York City enacts the first .
- Massachusetts and Missouri begin to issue driver's licenses.
- Mary Anderson invents the .
National Air and Space Museum