“The height of the Chacoan culture lasted from A.D. 1055 to 1083, corresponding to the period of most intense building activity. This period also produced the most startling series of events in the heavens that have taken place within the… — J. McKim Malville Copy Share Image
“The height of the Chacoan culture lasted from A.D. 1055 to 1083, corresponding to the period of most intense building activity. This period also… — J. McKim Malville Copy Share Image
