Margen
The most famous search engine in the world owes its name to a typing error: they wanted to name it after a gigantic number, the googol, and they spelled it wrong.
The googol is a 1 followed by a hundred zeros, a quantity larger than the number of atoms in the observable universe. It was named in 1920 by a nine-year-old boy, Milton Sirotta, when his uncle, the mathematician Edward Kasner, asked him for a name for that monster. Kasner popularized it in a book two decades later.
In 1997, Larry Page and his fellow students at Stanford were looking for a name for their search engine and someone suggested that number: it evoked the vastness of information they wanted to organize. When they checked whether the domain was free, they typed it wrong (google instead of googol), saw that it was available and liked how it looked. They registered the misspelling. The rest is history: one of the most valuable brands on the planet is, at heart, a typing mistake.
Source: Stanford University