Over the past two decades, as he became the richest person in the world, Elon Musk launched or led companies such as PayPal, SpaceX, Tesla, and Twitter. His success as a serial entrepreneur follows an eventful childhood in which a young Musk played with homemade rockets, coded his own video games and endured hardships both at school and home.

Here are several facts you might not know about Musk's youth.