Who went on a journey to the chinese royal court in the 1200's

One specific historical event or development during the period 1786-1861?

Read the excerpt from the history of herodotus, book 2. egypt . . is an acquired country, the gift of the river. this quotation from herodotus, a greek who traveled in egypt, is about how the nile river enabled ancient egyptian civilization to develop and succeed. what specifically was the river’s gift? fertile soil fishing stocks defensive capabilities drinking water

Who were the people that migrated south into india and indus valley