1863 – Abraham Lincoln signs National Currency Act, establishes single national US currency.
1869 – 15thAmendment guaranteeing right to vote sent to states to ratify.
1891 – 1st buffalo purchased for Golden State Park.
1893 – 2 Clydesdale horses set record by pulling 48 tons on a sledge, Michigan.
1907 – US Congress raised their own salaries to $7,500.
1919 – Congress forms Grand Canyon National Park in Arizona.
1930 – 1st red & green traffic lights installed (Manhattan NYC)
1938 – 1st passenger ship equipped with radar.
1944 – 1st female US navy captain, Sue Dauser of Nurse Corps, appointed.
1954 – 1st typesetting machine (photo engraving) used, Quincy, Mass.
1960 – Verne Gagne beats Doctor X in Omaha, to become NWA wrestling champ.
1972 – Slag heap dam collapses above Buffalo Creek, West Virginia, kills 125.
1973 – Triple Crown horse Secretariat bought for a record $5.7m.
1979 – Last total eclipse of Sun in 20th century for continental US.
1987 – Tower Commission probes Iran-Contra affair.
1991 – Signs of Iran crude now an option for US refiners, but no imports from Iran likely in near future.
1993 – “World Trade Center bombing of 1993”; truck bomb explodes in parking garage of NYC World Trade Center at 12:18 p.m., killing 6 and injuring over 1,000 in what was the deadliest act of terrorism perpetrated on US soil at the time.
1998 – Oprah Winfrey found not guilty in beef defamation trial brought by Texas cattlemen.
2004 – The United States lifts a ban on travel to Libya, ending travel restrictions to the nation that had lasted for 23 years.