Mike Marshall

Chaco Canyon, located in northwest New Mexico, is perhaps the only site in the world constructed in an elaborate pattern that mirrors the yearly cycle of the sun and the 19-year cycle of the moon. How did an ancient civilization, with no known written language, arrange its buildings into a virtual celestial calendar, spanning an area roughly the size of Ireland?

Over 2000 Union soldiers, passengers and crew were crammed aboard the steamboat Sultana, licensed to carry 376. Graft, greed, overcrowding, a poorly maintained boat, and the Mississippi River was swollen with spring snowmelt conspired together to create a disaster. On April 27, 1865, the boat’s boilers exploded, causing the worst maritime disaster in US history.