No, April 18, 1775, was a Tuesday. Check here: http://www.timeanddate.com/calendar/index.html?year=1775&country=1
Tuesday, the day of the week
Tuesday
He placed 2 lanterns in the Old North Church to alert the patriots of the approaching British across the water.
18th April 1775 was a Tuesday. The year 1775 is a common year, with 365 days in total (Gregorian calendar). The Gregorian calendar was adopted by Great Britain and the American colonies in 1752.
paul revere