Nike is my favorite shoe brand, they make great products.
Yes they do. It would surprise you if I tell you that Nike is an American brand. Their headquarter is in Oregon 
Oregon? Strange place to be located, they make great basketball shoes.
Yes, near Beaverton in the Portland metropolitan area. 
when did they first start up? Cant imagine before the 70s
The company started operations 01/25/1964 by Bill Boweman  and Phill Knight
wow wouldve never guessed over 50 years, quite impressive
yes, judging by their sales of US$24.1 billion, they  are the biggest in the business around the world