Astrolabe: An astrolabe was an ancient navigational instrument used by sailors for determining latitude based on celestial observations.
Compass: A compass is a magnetic instrument that indicates direction relative to Earth's magnetic poles. It helped navigators establish their course even when visibility was limited.
Caravel: A caravel was a small but highly maneuverable ship utilized by European explorers during their expeditions. Its design and technology allowed for improved navigation and exploration.