Why Tuesday? Many people voted far from home and didn’t want to travel on Sundays for religious reasons. Choosing Tuesday instead of Monday gave them an extra day to make the trip.
Why “after the first Monday”? This ensured that Election Day wouldn’t fall on November 1. Businesses used that day to check inventory and calculate financial records for the previous month.
Why November? In the 1800s, many Americans farmed for a living. November was after the fall harvest but before winter weather made traveling difficult.