how did coca cola become the worlds most recognized product?

3 answers

World War II
it was due to world war II?
World War II played a large part in making Coke a worldwide product.

http://www.coca-colacompany.com/stories/the-chronicle-of-coca-cola-a-symbol-of-friendship

http://www.interbrand.com/en/best-global-brands/2012/Coca-Cola