- From the 1930s onward, a number of Neapolitans moved northward, taking their cuisine with them.
- When Allied soldiers invaded Italy in 1943, they so liked the pizza that they asked for it wherever they went.
- After the war, tourists became increasingly curious about Italian food, including pizza.
- In America, by the end of the 19th century, Italian emigrants had reached the East Coast, and in 1905 the first pizzeria was opened in New York City.
- Shortly after the US entered World War II, a Texan opened Chicago pizzeria. He offered the dish with a thicker crust and with more toppings, usually with cheese at the bottom and chunky tomato sauce on top.
- In the 1950s, the pizza became more domesticated. Frozen pizza was designed to be taken home and baked at will.
103 people saved this idea