Fatto generale: 2038 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 2038 is the number of Eulerian graphs with 9 vertices.
Trivia: 2038 is an unremarkable number.
Data storica: July 30th is the day in 1866 that New Orleans's Democratic government orders police to raid an integrated Republican Party meeting, killing 40 people and injuring 150.