China sailed in the Age of Discovery to spread this

Spread culture

Explanation:

Age of Discovery was the period in which there are massive explorations of foreign lands by different continents particularly Europe.

However, China also had its fair share of foreign land exploration that cut across, Southern Asai, Europe, the Middle East, and East Africa.

During this period, China spread their various cultures among those they have contact with, including their inventions such as paper making, printing, gunpowder, and the compass.