General fact: 243 is the number of Earth Days for the planet Venus to complete one Venetian day, one revolution.
Mathematical fact: 243 is the largest 3-digit number that is a fifth power (35).
Trivia: 243 is the number of Earth Days for the planet Venus to complete one Venetian day, one revolution.
Historical date: August 30th is the day in 1945 that the Supreme Commander of the Allied Forces, General Douglas MacArthur lands at Atsugi Air Force Base.