Portal:United States/Anniversaries/January/January 6
- 1838 – Samuel Morse successfully tests the electrical telegraph for the first time, at the Speedwell Ironworks near Morristown, New Jersey.
- 1893 – The Washington National Cathedral (pictured) is chartered by Congress. Construction would not begin until 1907, and would not end until 1990.
- 1910 – The Great White Fleet, a fleet of United States Navy battleships that completed a circumnavigation of the globe between 1907 and 1909, passes through the Suez Canal. It is the largest group of ships to pass through the canal up to that time.
- 1912 – New Mexico is admitted as the 47th U.S. state.
- 1941 – President Franklin Delano Roosevelt delivers his Four Freedoms Speech during the State of the Union Address.
- 1974 – In response to the 1973 energy crisis, daylight saving time commences nearly four months early in the United States.