June 15: Day of Arafah (Islam, 2024); King's Official Birthday in the United Kingdom (2024)

Sallie Gardner at a Gallop

• 1215 – King John of England and a group of rebel barons agreed on the text of Magna Carta, an influential charter of rights.
• 1800 – War of the Second Coalition: The signing of the Convention of Alessandria brought temporary peace between France and Austria.
• 1878 – Eadweard Muybridge took a series of photographs to prove that all four feet of a horse leave the ground when it gallops (animation pictured), which became the basis of motion pictures.
• 1944 – World War II: The United States Army Air Forces began its first air raid on the Japanese archipelago, although little damage was caused.
• 1996 – The Troubles: The Provisional Irish Republican Army detonated a truck bomb in the commercial centre of Manchester, England, injuring more than 200 people and causing widespread damage to buildings.