Assertion: frozen pizza | /r/HasProperty | invented in the 1950s
Facets:
value: by minneapolis pizzeria owner rose totino
type: OTHER
Source sentences:
text: Frozen pizza was invented in the 1950s by Minneapolis pizzeria owner Rose Totino; Pizza Hut opened its first restaurant in Wichita, Kansas in 1958; Little Ceasar's followed a year later, and Domino's came in 1960.