What evidence indicates that china lost interest in the contacts abroad after 1433?

Zheng He's voyages came to an end in 1433. The famous Chinese admiral and explorer Zheng He led seven expeditions to the Indian Ocean and Southeast Asia between 1405 and 1433. these expeditions were sponsored by the Yongle Emperor of the Ming Dynasty. After the Yongle Emperor's death in 1424, his successor, the Hongxi Emperor, ended the voyages. The reasons for this decision are not entirely clear, but it is thought that the new emperor was less interested in foreign exploration than his predecessor and was concerned about the high cost of the voyages.

The Chinese government implemented a series of policies that restricted contact with foreigners. In 1436, the Chinese government issued a ban on private overseas trade. This ban was lifted in 1567, but it was still difficult for Chinese merchants to trade with foreigners. The government also restricted the entry of foreigners into China. In 1524, the Chinese government established a policy of "closed-door" isolationism, which further limited contact with foreigners.

The Chinese economy became increasingly self-sufficient. during the Ming Dynasty, the Chinese economy grew rapidly. This growth was driven by a number of factors, including increased agricultural production, the development of new technologies, and the expansion of trade within China. As the Chinese economy became increasingly self-sufficient, the need for contact with foreigners decreased.