If you've been to a health food store recently, you've probably noticed jojoba (pronounced ho-ho-ba) oil lining the shelves. And while the lipid has only recently become popular in the U.S., it's been used to treat dry skin for centuries, especially in Mexico [Source: Zeichner].
Forbes released its 2015 list of the worldâs richest people, with Microsoftâs co-founder Bill Gates reclaiming the top spot from Mexicoâs telecommunications mogul Carlos Slim Helu. According to Forbes, a record net worth of $29.2 billion was needed to make the top 20.
Aliko Dangote, the world's wealthiest black person Oprah Winfrey at the White House in 2010, the first female black billionaire and the only black billionaire from 2004 to 2006 According to Forbes 2014 ranking of the world's billionaires, Nigerian business magnate Aliko Dangote with a net worth of $25 billion is the world's richest black person.