How Old Were Elon Musk Kylie Jenner Others When They Became Billionaires

When she became the youngest self-made billionaire, she was 21 years old.. Image Source: Instagram-kyliejenner..

In his Harvard dorm room in 2004, Mark Zuckerberg founded and launched the social networking site Facebook..

Rowling has experienced a "rags to riches" existence, going from relying on government assistance to being the first billionaire author in history..

At age 38, Rowling attained billionaire status.. Image Source: Instagram-jkrowling_official..

Elon Musk became a self-made millionaire in 1999 when he sold a web software company for more than $300 million at the age of 27..