What is an important crop from native americans that later failed due to mold, caused to famine in ireland

This is going to be potatoes. The Irish Potato Famine was a significant point in history.

Hope this helps!

herodotus taught this. herodotus was an ancient greek historian who was born in halicarnassus in the persian empire. he is known for having written the book the histories, a detailed record of his "inquiry" on the origins of the greco-persian wars.