http://www.newsweek.com/chocolate-1500-years-older-previously-thought-and-it-didnt-originate-central-1191689

From the bitter, cold drinks of Mesoamerica to the vast array of sweet, creamy treats available today, our love affair with the rich cacao bean has ancient roots.

But scientists have discovered this relationship with goes back much further than previously thought. Rather than originating in Central America some 3,900 years ago, new evidence suggests South Americans were cultivating cacao about 1,500 years previously.