Ming Dynasty: This was one of China's most influential dynasties, ruling from 1368 to 1644. The voyages led by Zheng He were sponsored by the Ming emperors as a way to expand Chinese influence and establish diplomatic ties.
Diplomacy: Referring to the art of conducting negotiations and maintaining relations between nations, diplomacy played a crucial role in Zheng He's expeditions as he engaged with various rulers and city-states along his route.
Astrolabe: An astrolabe is an ancient navigational instrument used to determine latitude at sea. Zheng He's fleet relied on advanced navigation techniques like the astrolabe to ensure accurate positioning during their long journeys.