The Food Timeline shows which foods were invented when. Ok, not invented, exactly, but first eaten. A tasting menu:
Pretzels, 5th century AD.
Pork and beans, 1475.
Foie gras, 1st century AD.
Croissants, 1686.
Chop suey, 1896.
Popcorn, 3600 BC.
Swedish meatballs, 1754.
(via snarkmarket)