Fait mathématique: 7039 is 28156 / 4, and each digit is contained in the equation exactly once.
Culture générale: 7039 is an unremarkable number.
Date historique: April 9th is the day in 1980 that the Iraqi regime of Saddam Hussein kills philosopher Muhammad Baqir al-Sadr and his sister Bint al-Huda after three days of torture.