I use to play with Barbie's as a kid all the time.
As a guy, I also love playing with Barbies.  It was produced by Mattel Inc, an American company in 1959.
Really? Who created the Barbie?
Ruth Handler did - she was an American businesswoman. 
Did she name Barbie and Ken?
I think that's an unknown, but my thought is her daughters name is Barbara.  She likely named the dolls Barbie after her daughter.  As for Ken, I don't know where the name came from but it has also been called Ken.
Interesting. Do you know what the company is worth currently?
Not sure but Mattel has sold over a billion Barbie dolls and it's the most profitable line for Mattel.  However, with the introduction of technology, sales have been dropping alot.