<span>The Iroquois Confederacy was well organized and effective. i think</span>
<span>The current thinking is around 200,000 years ago, but I would argue against this by saying that humans had not yet developed the same mental capacity that we have today, as some cognitive ability would have been needed in making art, which of course seems to have appeared around 70,000 years ago in its geometric form, where as the figurative animal paintings and carvings came to be around 40-35 thousand years ago. So, humans were physically definitely modern around 200ka, but mentally, this is unlikely. It is of course possible to argue that behavioural changes need not to be dictated by physiological or cognitive changes. Art could just be an invention</span>
Brunelleschi created perspective, it was important because it was never seen before and allowed artists to draw what their eyes could see
