17 incredible facts you probably didn't know about Apple

Apple is the most valuable company in the world - and it has the cash on hand to prove it. 

But even before the iPhone revitalized the company in 2007, Apple had a rich and storied history as one of the first companies to make it really big in Silicon Valley. 

Here are 17 things you probably didn't know about Apple, from its clothing line to Bill Gates to its serious financial trouble.