History is written by the victors.

This phrase seems to be everywhere of late. I can't find the origin. Does anyone have an idea where it came from, and who said/wrote it?
Thanks.

I looked in several quote books (and at Quoteland online) and couldn't find it. I did find a similar quote:

"'Who controls the past,' ran the Party slogan, 'controls the future: who controls the present controls the past.'" George Orwell, "1984."