New Haven's greatest culinary claim to fame may be its pizza, which has been claimed to be among the best in the country, or even in the world. New Haven-style pizza, called "apizza" (pronounced ah-BEETS, [aˈpitts] in the original Italian dialect), made its debut at the iconic Frank Pepe Pizzeria Napoletana (known as Pepe's) in 1925. Apizza is baked in coal- or wood-fired brick ovens, and is notable for its thin crust. Apizza may be red (with a tomato-based sauce) or white (with a sauce of garlic and olive oil), and pies ordered "plain" are made without the otherwise customary mozzarella cheese (originally smoked mozzarella, known as "scamorza" in Italian). A white clam pie is a well-known specialty of the restaurants on Wooster Street in the Little Italy section of New Haven, including Pepe's and Sally's Apizza (which opened in 1938). Modern Apizza on State Street, which opened in 1934, is also well-known.
In what year was New Haven-style pizza found? (If the question is unanswerable, say "unanswerable")
1925