Question: Which was founded first Pizza Hut or Regina Pizzeria ?

Context paragraphs:
Ringer Hut: Ringer Hut (リンガーハット ) is a Japanese chain of fast-food restaurants, specializing in Nagasaki dishes Champon and Sara udon.  The Hamakatsu Co. of Nagasaki, founders of the chain in 1974, borrowed the name of the former Ringer House which had been purchased by Nagasaki City and opened as a tourist attraction in 1966.  It is likely that the company borrowed the word "hut" from "Pizza Hut."  Ringer Hut operates over 550 restaurants in Japan, Taiwan, and San Jose, California along with 100 Hamakatsu Restaurants (tonkatsu restaurant chain).  Ringer Hut has two headquarters located in Fukuoka and Tokyo.

Pilsworth: Pilsworth is a small area in the Metropolitan Borough of Bury, Greater Manchester, England.  It was most well known locally for homing Park 66, a leisure park that consisted of a cinema, a ten-pin bowling alley, an Asda superstore and a selection of restaurants such as Pizza Hut, McDonald's, Frankie & Benny's and Chiquito.  However following the closure of the cinema most of the other retail and leisure venues followed suit with only Asda and McDonald's remaining.  Pizza Hut and Frankie and Benny's closed in December 2014.  The Asda storehasno plans to close.

Pizza Hut Israel: Pizza Hut Israel (Hebrew: פיצה האט‎ ‎ ) is the Israeli franchise of Pizza Hut with 56 branches as of September 2014.  Pizza Hut Israel is the largest pizza chain in Israel.

Pizza Haven (United States): Pizza Haven was an American Seattle-based pizzeria and pizza delivery chain, known as dial-a-pizza, founded in 1958 and opening its first location in the University District, Seattle near the University of Washington.  Pizza Haven was one of the first pizza companies to make deliveries.  Restaurant employees used radio phones to relay orders to roving drivers who carried stacks of pizzas in warming ovens in the back of their jeeps and pickup trucks.

Pizza in China: The presence of pizza restaurant chains has contributed to a significant increase in pizza consumption in China.  This also had an effect of introducing cheese as a culinary ingredient and everyday food in China, which was relatively uncommon in Chinese cuisine prior to the emergence of pizza chains.  Pizza Hut opened its first store in China in 1990, and several pizza restaurant chains exist in China today.

The Pizza Head Show: The Pizza Head Show was the name of a live action spoof show used in Pizza Hut commercials from 1993 to 1997 to advertise their promotions and new kinds of pizza.  The commercials starred a piece of pizza named Pizza Head, who had a face made out of different toppings and his pizza cutter nemesis named Steve who would try to cause him as much harm as possible.

Regina Pizzeria: Regina Pizzeria, also known as Pizzeria Regina, and originally called Regina Pizza, is a regional pizza chain in New England.  The company was founded in 1926 by Luigi D'Auria in Boston's North End neighborhood.  It has been run by the Polcari family since 1956.  The chain is a part of Boston Restaurant Associates and is headquartered in Lynnfield, Massachusetts.

Pizza Hut: Pizza Hut is an American restaurant chain and international franchise founded in 1958 by Dan and Frank Carney.  The company is known for its Italian-American cuisine menu including pizza and pasta, as well as side dishes and desserts.  Pizza Hut has over 15,000 locations worldwide as of 2015, and is a subsidiary of Yum!  Brands, Inc., one of the world's largest restaurant companies.

JS Food Plan: JS Food Plan Co, Ltd. (commonly referred to as "JS" (which is an acronym for the Korean name Jae Sang) (hangul:제이에스 푸드플랜) is a franchised Korean pizza company headquartered in Yeoeuido-Dong Yeongdeungpo-gu, Seoul, Korea, established in 1998 the company is currently CEO'd by Jeong Jae Sang (정재상).  Its brand name is Pizza Segyero.  (hangul:피자 세계로) In 2005, the company became an international franchise when it expanded to Beijing, China.  The company is comparable to pizza restaurant chains such as Hankook Pizza Hut, Hankook Mr. Pizza, Chicken Nara, Domino Pizza Korea, Pizza Etang and Reach Beam.

WingStreet: WingStreet is a restaurant chain specializing in chicken.  The restaurant chain is owned by Yum!  Brands, which also owns its sister franchise Pizza Hut.  As of September 2008, there were close to 1,600 locations in the U.S., Canada, and Australia.  They are almost always co-located with Pizza Hut.

Supporting paragraphs: Pizza Hut Regina Pizzeria
Answer: Regina Pizzeria