He used to sell Christmas cards, mushrooms, and berries, but at the age of 17 a Swedish boy named Ingvar Kamprad founded IKEA (the name is the first letters of his name, farm, and village). This revolutionized the furniture world. He came up with the idea of selling goods in disassembled form. He later developed the idea, taking puzzles as an example: the customers were encouraged to assemble not only the furniture but also their homes with the "pieces" in the store. This allowed for millions of combinations.
Today IKEA has almost 400 stores around the world. And they aren’t just stores but amusement parks.