Fatto generale: 52019 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 52019 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 52019 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: June 3rd is the day in 1916 that the National Defense Act is signed into law, increasing the size of the United States National Guard by 450,000 men.