What day of the week was September 1, 1648?
The day of the week September 1st, 1648 fell on was a Tuesday.
Marin Mersenne the French mathematician, theologian, and philosopher (b. 1588) died on this day in 1648.
The day of the week September 1st, 1648 fell on was a Tuesday.
Marin Mersenne the French mathematician, theologian, and philosopher (b. 1588) died on this day in 1648.