i love eating all types of hamburgers,  A hamburger, beefburger or burger is a sandwich consisting of one or more cooked patties usually made from ground beef
I love hamburgers too! they are my fave, What kind of toppings do you usually put on yours? 
i usually only put onion chesse and tomatoes,  The patty may be pan fried, barbecued, or flame broiled
I like mine flame broiled, it tastes so much better that way. When was the burger invented anyway? 
The term "hamburger" originally derives from Hamburg, Germany's second-largest city but im not sure where it was invented
Oh wow it came from Germany! I had no idea, I always thought it was purely an American food.
called a cheeseburger.
The term "burger" can also be applied to the meat patty on its own, especially in the United Kingdom, where the term "patty" is rarely used, or the term can even refer simply to ground beef. Since the term hamburger usually implies beef, for clarity "burger" may be prefixed with the type of meat or meat substitute used, as in beef burger, turkey burger, bison burger, or veggie burger.
Hamburgers are sold at fast-food restaurants,
Hamburger
A hamburger (short: burger) is a sandwich consisting of one or more cooked patties of ground meat, usually beef, placed inside a sliced bread roll or bun. The patty may be pan fried, grilled, or flame broiled. Hamburgers are often served with cheese, lettuce, tomato, onion, pickles, bacon, or chiles; condiments such as ketchup, mayonnaise, mustard, relish, or "special sauce"; and are frequently placed on sesame seed buns. A hamburger topped with cheese is