Hamburger History

You can buy a hamburger in almost anywhere in the world. But do you know anything about the history of this simple sandwich?

There are several people who claim to have invented the hamburger. However, the honor probably goes to a small diner in Connecticut named Louis' Lunch. According to history, a customer wanted a quick hot meal to take home for dinner. Unfortunately, the diner was out of steaks, so the owner grilled ground beef and placed it between two slices of toast. There wasn't any ketchup, mustard, or cheese, though. This was 1900.

Since the simple beginnings, the hamburger has become the world's most famous sandwich.
 

Vocabulary/Expressions: 
1. honor - to regard or treat (someone) with respect and admiration 
2. diner - a small cheap restaurant that is open all day 
3. grill - to cook (food) over fire 
 

Questions: 
1. What was the name of the diner where a hamburger was first made? 
2. Summarize the history of the hamburger. 
3. Do you like hamburgers? How often do you eat them? 
4. What kind of burgers are exclusive in Korea? 
5. If you could invent a burger, what would you put in it and what would call it?