Except that pizza has never been a poorman's food in Italy, it was a kind of bread.
Still mostly is a popular inexpensive food, in many places is also a traditional food, not a delicacy as the article says.
The only contribution to pizza toppings from America has been tomato, that arrived to Europe after Cristoforo Colombo went there, specifically in Central America.
Before that pizza was white, but not less flavored, we have historical documents that date back pizza before the year 1000 in a place in Italy (Gaeta) which is well known for its olives (and consequently olive oil) mozzarella cheese and fresh vegetables, besides having one of the most idyllic seaside in Italian's west coast.
Pizza in North America has never been a thing before late XIX century.
Still mostly is a popular inexpensive food, in many places is also a traditional food, not a delicacy as the article says.
The only contribution to pizza toppings from America has been tomato, that arrived to Europe after Cristoforo Colombo went there, specifically in Central America.
Before that pizza was white, but not less flavored, we have historical documents that date back pizza before the year 1000 in a place in Italy (Gaeta) which is well known for its olives (and consequently olive oil) mozzarella cheese and fresh vegetables, besides having one of the most idyllic seaside in Italian's west coast.
Pizza in North America has never been a thing before late XIX century.