Everyone knows "Google," but its name actually comes from a number so astronomically large it's hard to grasp. What was the original, correctly spelled mathematical term that inspired the tech giant's name, famously suggested by a young boy?

This charming origin story is documented in "Mathematics and the Imagination," a 1940 book by mathematician Edward Kasner and James R. Newman. According to the book, it was Kasner's nine-year-old nephew, Milton Sirotta, who in 1938 coined the term "Googol" for the immense number one followed by 100 zeros. Decades later, when Larry Page and Sergey Brin were brainstorming names for their search engine in 1997, they aimed for "Googol" to signify the vast amount of information they indexed. They accidentally misspelled it as "Google," and the rest, as they say, is history. What a lucky typo, right?