Between 1945 and 1969, archaeologists hurriedly surveyed over 20,000 prehistorical sites before the Mississippi River Basin was flooded by dams.
Wooden Bog Butter Barrels are possibly the most beautiful things you can find in a bog. But why did people throw their butter into bogs?
Cahokia was the largest pre-columbian settlement north of Mexico. It collapsed centuries before Europeans arrived in the region. What happened?