What year did the Battle of Agincourt take place?

The story behind the answer

1415 is correct: on 25 October 1415 (St. Crispin’s Day), during the Hundred Years’ War, King Henry V’s small, exhausted English force defeated a much larger French army at Agincourt. English longbowmen, narrow terrain, and thick mud trapped heavily armored French knights, turning the battle into a decisive English victory with heavy French losses.

Agincourt became legendary, immortalized by Shakespeare’s Henry V and the famous St. Crispin’s Day speech. To remember the year, link Henry V’s numeral V (5) to the last two digits: 15—Agincourt ’15 with Henry V. It marks the high point of Henry V’s campaign and the power of the longbow in medieval warfare.