so native americans 'invented' grits. thats great. the world would be unreconizable without grits. but what advances in science mathematics medicine engineering or philosophy came from outside europe? precious few. and this isnt really an opinion
The Great Pyramids along the Rhine are proof.
The Norwegian game of Hnefatafl out dates Indian " chess" by several centuries. Also played on a board with squates and pieces that resemble modern chess pieces. The Norwegians got it from the Romans where the game was called " Ludus Latrunculorum" and was played using dice. The Romans got it from Arabic traders on the silk route who inturn got it in Indai as far as I know.