Depends on organisms passing genes to the next generation. why do organisms resemble those from long ago?

Evolution takes a very long time and so the genes won't be completely different

The English colonists we call Pilgrims celebrated days of thanksgiving as part of their religion. But these were days of prayer, not days of feasting.

Our national holiday really stems from the feast held in the autumn of 1621 by the Pilgrims and the Wampanoag to celebrate the colony's first successful harvest