January 23rd (1870) was a Sunday. It's the 22nd day of the year (23rd in leap years) in the Gregorian calendar. There are 343 days left to the end of the year.
Historical Events for 23rd January, 1870
» In Montana, U.S. cavalrymen kill 173 Native Americans in the United States e.g Native Americans, mostly women and children, in what becomes known as the Marias Massacre.