The significant exploration that took place under the leadership of Zheng He occurred during the early 15th century, specifically between 1405 and 1433. Zheng He, a Chinese admiral, led several maritime expeditions that voyaged across the Indian Ocean, reaching as far as East Africa. His fleets showcased China's naval capabilities and established trade relations with various nations. These voyages promoted cultural exchanges, enhanced diplomatic ties, and facilitated the spread of Chinese technology and goods. Despite their achievements, these expeditions were eventually discontinued, leading to a period of isolation for China.