Based on the Online Etymology Dictionary, I think English speakers learned about zucchini when they visited Italy. read more
Summer squash varieties include zucchini, patty pans, yellow crookneck and eight ball squash. Zucchini and yellow squash in particular are sometimes referred to as "Italian squash." Summer squash tends to have relatively thin skin and may be eaten either raw or cooked. read more
That's why you'll see zucchini referred to as "Italian squash" in some recipes. Still, both summer squash has been around for quite some time. The crop dates back to 5500 B.C. where it was integral in the diets of people living in Central America and South America, according to the University of Arizona Cooperative Extension. read more