1st November 1911: First ever aerial bombing takes place in the Italo-Turkish War

Giulio Gavotti was an Italian lieutenant and pilot, who fought in the Italo-Turkish War. He set two firsts in the history of aerial warfare of heavier-than-air flyers: he was the first man to make an aerial bombardment, as well as the first to perform a night mission.
On 1 November 1911, he flew his early model Etrich Taube monoplane against Ottoman military in Libya. He took four grenades ("Cipelli") to a leather pouch, each of a size of grapefruit and weighing approximately four pounds. Flying at an altitude of 600 feet, Gavotti screwed in the detonators and tossed each missile over the side - three onto the Tagiura (Jagiura) oasis, and one more onto military camp at Ain Zara. Gavotti’s scheme injured no one.
https://en.wikipedia.org/wiki/Giulio_Gavotti