Fatto generale: 1303 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 1303 is the number of multigraphs with 7 vertices and 8 edges.
Trivia: 1303 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: July 26th is the day in 1775 that the office that would later become the United States Post Office Department is established by the Second Continental Congress.