Which event was NOT a part of the ancient Olympic Pentathlon?

The ancient Olympic Pentathlon consisted of five events: running, long jump, discus throw, javelin throw, and wrestling. Swimming was not included in the Pentathlon or in any of the ancient Olympic events, as the focus was on skills relevant to warfare and athletic prowess that were common in the Greek world.

Wrestling, javelin, and long jump were pivotal components of the Pentathlon, emphasizing strength, agility, and technique. Hence, recognizing that swimming was never a part of this ancient competition is crucial in understanding the structure and events of the games.