What was the purpose of magnetic compasses during exploration?

The purpose of magnetic compasses during exploration was primarily to enhance safety and efficiency in ocean travel. These navigational tools allowed explorers to determine direction more accurately, particularly when they were far from land and landmarks were not visible. By knowing which way was north, navigators could plot a course and maintain it over long distances, greatly improving their chances of successful voyages. This capability was vital in the Age of Exploration when travel across oceans could be perilous, and it helped facilitate trade and the spread of cultures. The development and use of the magnetic compass represented a significant advancement in navigation, which ultimately contributed to the success of many explorers in their quests for new trade routes and territories.