What achievement was made during Ming dynasty?

During the Ming Dynasty (1368-1644), one significant achievement was the construction of the Great Wall of China as we know it today, which was expanded and fortified to protect against invasions. Additionally, the period saw remarkable advancements in arts and culture, including the development of blue-and-white porcelain, and the flourishing of literature and drama. The Ming Dynasty also established a strong centralized government, enhancing trade and exploration, exemplified by the voyages of Admiral Zheng He.