What time did zheng he explore?

Zheng He was a Chinese explorer and diplomat during the early 15th century, specifically from 1405 to 1433. He undertook seven major voyages across the Indian ocean, reaching regions such as Southeast Asia, South Asia, the Arabian Peninsula, and East Africa. His expeditions aimed to establish trade routes and assert China's presence and influence in these areas. Zheng He's explorations were significant for their scale and the diversity of cultures they encountered.