The city of Caral was built in the Americas about the same time the Egyptian pyramids were built.
Some scholars think quipus were also navigational aids. Ancient sailors crossed the Pacific with ''star maps'' made of knotted cord. We never give ancient people enough credit! If only more funding were available for archaeology.....the '''new world'' (very Eurocentric term) is ''hot'' right now, since lidar's uncovered so many ruins in the Maya regions.