A galleon is a large sailing ship that was commonly used from the 16th to the 18th centuries. These ships were primarily designed for trade and warfare, featuring multiple decks and a combination of square and lateen sails. Galleons were known for their speed and capacity to carry heavy cargo, making them essential for maritime trade routes, especially in the Spanish Empire. Galleons often played a significant role in naval battles and exploration. They were equipped with cannons and could defend against pirates and rival nations. The most famous galleon is the Nuestra Señora de Atocha, which sank off the coast of Florida in 1622, carrying a treasure of gold and silver.