What vegetables did they bring from the New World?

The Old World is the term for Africa, Asia and Europe, the continents known to people native to those areas prior to exploration towards the end of the fifteenth century. The foods know today to the Western world are all Old World foods; four such foods are wheat, Apples, carrots and onions.

Conversely, the New World - the Americas (and some include Australasia) - discovered after the end of the fifteenth century, provided the Old World with foods hitherto unknown there, such as potatoes, tomatoes, corn (maize) and avocados.