Fatto matematico: 1756 is the number of ways to stack 28 boxes in a line so that each box lies on the table or on a box next to 2 boxes.
Trivia: 1756 is a boring number.
Data storica: October 21st is the day in 1959 that President Dwight D. Eisenhower signs an executive order transferring Wernher von Braun and other German scientists from the United States Army to NASA.