After the collapse of most extant American societies due to diseases introduced by Europeans, wars, enslavement, and genocide, the first Americans encountered by Europeans lived in structures roofed with bark or skin set in panels that could be added or removed for ventilation, heating, and cooling.
Despois do colapso da maioría das sociedades americanas existentes por mor das doenzas introducidas desde Europa, os primeiros europeos que atoparon a americanos ollaron que estes vivían en estruturas cubertas con cortiza ou paneis que podían engadirse ou eliminarse para a ventilación, quecer ou arrefriar as estancias.