I really enjoy pizza, but I do not know much about it.  Do you know where pizza first came from?
The very beginning was actually all the back with the Romans. It was called "panis focacius" and was a flat bread with topping put on it. 
Oh wow, that is really far back.  I guess I just asummed it came from Italy
In the late 18th century, what you would consider modern pizza was first made, and that was made in Naples. They put tomato on top of the focaccia.
So earlier pizza was more of a thin crust type of pizza.  My favorite pizza is Chicago style.
I like that, too! The person who founded Pizzeria Uno, Ike Sewell, says they invented it in 1943, but there is dispute over when it actually did occur. 
Is Pizzeria Uno still around?  I do not think I have heard of it.
Yes, it is! I love it there! It's usually called Uno Pizzeria & Grill, and they have some Florida locations as well as others around the country. 
I think the great thing about pizza is how many varieties there are out there.  You can literally put anything on a pizza
Yes, and you can make it healthy or unhealthy and give it so many different tastes. It is now everywhere, even as a big fast food in India.