Elon Musk’s Inventions Changing the World.

In 1999, Musk co-founded a company called X.com, which focused on financial services and email payments. A year later, X.com merged with Confinity and adopted the name of that company’s best-known service, PayPal. The two technologies created a powerhouse that led the way in online payments, which was eventually bought by eBay in 2002 for $1.5 billion. Musk pocketed $165 million from that deal.