28th July: Anniversary of the first hamburger

In 1900, on this date, Louis Lassing of New Haven, Connecticut created the first hamburger. 10 notable hamburger variations:

1. The traditional: The Lassing family still make burgers exactly as they did in 1900 - on vertical cast-iron gas stoves served on plain bread. You can garnish it with Cheese spread, Tomatoes and Onions. No ketchup, mayonnaise or Mustard is even allowed in the restaurant. Anyone bringing their own is asked to leave.
2. The very expensive: the most expensive burger ever cost $10,000 and was sold for charity. It was made from Wagyu beef, truffles, 24-karat gold leaf and sliced Spanish jamón ibérico, made from black Iberian Pigs fed a diet composed almost entirely of acorns. There are elite restaurants which regularly serve very pricey burgers made from such ingredients as lobster tails, foie gras, and even barbecue sauce made with Kopi Luwak coffee beans (where the beans have first been eaten and then excreted by a civet).
3. The largest: In 2007, Denny’s Beer Barrel Pub in Clearfield, Pennsylvania, set a record for the world’s largest hamburger offered for sale. It weighed 123lb. A 3,591 pound burger was made in 1982, and shared between 10,000 people.
4. The burger with no beef in it: In India, you cannot buy beef burgers, even in McDonalds, because Cows are sacred.
5. The burger with artificial meat: Maastrict University in the Netherlands has created a burger from laboratory cultivated beef, which contains no fat, but still tastes good, according to the head of the project, Dr Mark Post. The cow-friendly burger doesn't come cheap, though. A five ounce burger cost $325,000 to make.
6. The world's most fattening burger: a restaurant in Las Vegas known as the Heart Attack Grill has on its menu a burger known as The Quadruple Bypass. It consists of four half-pound hamburgers, three tablespoons of lard, 20 slices of bacon, eight slices of American cheese, 20 slices of caramelized onion baked in lard, eight tomato slices, one tablespoon of mayonnaise, two tablespoons of ketchup, one tablespoon of mustard, and a bun. It contains a staggering 9,982 calories. The fries it comes with are cooked in pure lard and you can wash it down with a butterfat milkshake.
7. A jerky burger: Just buy any McDonald's burger and leave it a while, because they don't rot, they simply dry out. This isn't down to them being full of chemicals, just low in moisture.
8. The secret burger: McDonalds has a secret menu. You can get Land, Sea and Air Burger: a chicken patty, a beef patty, and a Filet O' Fish patty on a single bun, but only if you're in the know.
9. The $100 hamburger: you need to know an amateur pilot in the US for this. It's a slang term for going on a short flight just for the fun of it, which usually involves eating a burger in an airport restaurant. The burger doesn't cost $100 - the fuel to get you there does.
10. The exotic burger: There is a restaurant in America called Twisted Root Burger Co that serves Kangaroo burgers, Beaver burgers, ostrich/emu burgers, and more.