DNA testing on skeletons recently unearthed at a site in Germany reveal that human society hasn’t changed much in 4,600 years.
In one grave, a man, a woman, and two young children were buried together. DNA tests showed that the four were related, i.e., they were a traditional nuclear family unit. But the bones showed evidence that this family and the others at the site had all died violently, apparently in a village raid.
So take your pick on the primary history lesson: Here is evidence that the traditional family has always been the foundation of society. Or here is evidence that mankind has always been at war with itself.
Personally, I see a third lesson that tips the scales toward a more optimistic view of humanity: Apparently there were enough survivors from the raid that they took the time to honor their dead and bury the victims, many of them in an eternal embrace. Even in the midst of a violent world, people still have the capacity for love.