Elon Musk, at the age of 12 years created a video game called "Blastar," which he sold to a computer magazine for US$50.
During his college years at the University of Pennsylvania, Musk and his roommate rented a large house and turned it into a nightclub to help pay the rent.
In 1999, Compaq acquired Musk’s first major business, Zip2 for $307 million.
In 2013, Tesla was facing significant financial difficulties, and Musk considered selling the company to Google.
In 2014, Musk founded a private school called Ad Astra (Latin for "To the Stars").