Pizza was even more unknown and took of in the US only after WW2 when soldiers stationed in Italy came back: https://www.historylink.org/file/20557 https://www

Pizza was even more unknown and took of in the US only after WW2 when soldiers stationed in Italy came back: https://www.historylink.org/file/20557 https://www.historylink.org/file/20557 > By September 1949 The Seattle Times was touting the joint and its palpable history: "For a sentimental journey to an almost-vanished Seattle, and some fine Italian food, try ... Daverso's Palace Grill ... The huge old mahogany back bar, the tiled floors and walls, and the checkered tablecloths will make you nostalgic, and the king-size menu will make you hungry. A couple of specialties: Pizza, the hot pastry that looks like a phonograph record, covered with mushrooms, cheese and tomatoes ..." (Lund, "A La Carte"). > The fact that a writer for The Seattle Times in 1949 felt obligated to describe what a pizza looks like was simply because few in the area had ever seen or tried one. As Frank Daverso would later recall: "We had to give it away for the first four years. Nobody had ever heard of it. Customers liked our spaghetti and ravioli, so we'd give 'em a sample of pizza with each order. They seemed to like pizza but just wouldn't order it. Finally, we tried advertising. Sailors and other servicemen, who had eaten pizza in the East, began coming in and soon it caught on -- but it took four long years"