Found a good "North American History 1200-1400 AD" link? Let Us Know!

Still working on it. . .

Magna Charta While technically not an "American Document" it's importance in influencing the shape and context of our founding documents  requires its being included here. Enacted in June, 1215.

Social Strife May Have Exiled Ancient Indians UNTIL very recently, the most perplexing mystery of Southwestern archeology -- what caused the collapse of the ancient empire of the Anasazi -- seemed all but solved. Careful scrutiny of tree-ring records seemed to establish that in the late 1200's a prolonged dry spell called the Great Drought drove these people, the ancestors of today's pueblo Indians, to abandon their magnificent stone villages at Mesa Verde and elsewhere on the Colorado Plateau, never to return again.

The Athapaskan (Apache & Navajo) 1400 A. D. (or Earlier) to Present. Athapaskan speaking peoples – ancestors of the Navajos and the Apaches – began filtering from the north and west into the deserts and southern prairies of North America some five to possibly 10 or more centuries ago, at some point during the fluorescence of the Puebloan peoples.