Mark Zuckerberg became the youngest self-made billionaire back in 2012 when he took Facebook public. According to Forbes, he was just 23 years old at the time.
Now, at the age of 41, Zuckerberg has an estimated $209 billion net worth. But if you think that’s impressive, just wait until you hear about the trio of 22-year-olds who recently became self-made billionaires all on their own.
