Ive been a pizza fanatic for years, I know everything there is to know about it, Do you like pizza? 
I love pizza especially Chicago style deep dish.
Me too!! Id say deep dish pizzas from Chicago are the most famous known deep-dish pizza.s out there. Dont you agree? 
I do, too.  I can't remember if Lou Malnati or another kind is the most famous in Chicago.
Oh yes! Lou Malnati's Pizzeria, Ive been there before, Its a great Chicago-style pizza restaurant, I believe its in Northbrook, Illinois.
Oh, didn't realize it was in Northbrook.  Do you know when his pizza originated?
cuisine nationally.
History.
Lou Malnati began working with his father, Rudy, in the 1940s making deep-dish pizza. In the 1950s they co-managed Pizzeria Uno. Lou and his wife Jean opened the first Lou Malnati's Pizzeria on March 17, 1971, in Lincolnwood, Illinois.
The Lincolnwood restaurant was successful, and the family subsequently opened another restaurant in Elk Grove Village, Illinois. After an initial rocky start, the second restaurant proved profitable and the company continued to grow. As of
Chicago-style pizza
Chicago-style pizza is pizza prepared according to several different styles developed in Chicago. The most famous is deep-dish pizza. The pan in which it is baked gives the pizza its characteristically high edge which provides ample space for large amounts of cheese and a chunky tomato sauce. Chicago-style pizza may be prepared in deep-dish style and as a stuffed pizza.
Deep-dish pizza.
According to Tim Samuelson, Chicago's official cultural historian, there is not enough documentation