I believe it happened in six days, just as God's Word says. In the islands off Papua New Guinea, a lot of the tribes believe they came from birds. It is their most powerful symbol. Without crosses to surround them, the Pima would sense a constant and grave danger. Crosses are the only tombstone worth having.
Every deceased soul has at least two.
To fail to do so would risk great damnation. Though the symbol of the cross surrounds them, the Pima still live in fear. This springs from their worldview that Pumes are poor, and the rest of the world is rich and owes them. Nobody in that tribe lost sleep over that. Their worldview told them they were acting properly in accordance with the facts.