Which restaurant chain primarily sells thin crust pizza by-th-slice Pizza Schmizza or Ledo Pizza?
Ledo Pizza:  Their first pizzeria was opened in Adelphi, Maryland, in 1955 on University Boulevard (Maryland Route 193) in Adelphi Shopping Center near the University of Maryland, College Park ( ). Ledo Pizza:  The first franchise was granted to the Fireside Restaurant in Berwyn Heights, Maryland, in 1979. Pizza Schmizza:  Pizza Schmizza, primarily selling thin crust pizza by-the-slice.
i don't know