Difference between "Becoming" and Anicca

To preface my question, I will add that I am very unfamiliar with Buddhism. My knowledge consists of some historical anecdotes, and I also know some of the basic tenets. That being said, is there a difference between "Becoming" and Anicca/Impermanence? The former is a philosophy that originated in the West, and is nearly as old as Buddhism itself. Are they essentially the same thing, but stated differently? Or am I overlooking a huge fundamental difference which delineates the two?