did the Ming dynasty have any influence outside of china and did they expand or unified China?

Hey, did you ever heard about Zheng He’s Expedition? That what happened during Ming Dynasty. The expedition strengthened the diplomatic relations between Ming and several other countries along Indian Ocean. And Zheng He bring back some plants species from the other countries.
Considering the territory, During Ming Dynasty, its territory extends to An’nan to the south and Stanovoy Range to the northeast.