Nautical history refers to the study of human activities related to the sea, including exploration, trade, and naval warfare. It encompasses the development of ships, navigation techniques, and maritime laws. Key periods include the Age of Exploration, when explorers like Christopher Columbus and Ferdinand Magellan expanded global trade routes. The evolution of maritime technology, such as the invention of the compass and advancements in shipbuilding, played a crucial role in shaping societies. Nautical history also examines the impact of naval power on empires, with significant events like the Battle of Trafalgar influencing global politics and trade.