Spotting the perspective is not that easy, at least in art, and it's first in 1400's that we understood it properly. Before Filippo Brunelleschi* most things we

Spotting the perspective is not that easy, at least in art, and it's first in 1400's that we understood it properly. Before Filippo Brunelleschi* most things were painted with invalid perspectives. * http://en.wikipedia.org/wiki/Filippo_Brunelleschi#Invention_of_linear_perspective http://en.wikipedia.org/wiki/Filippo_Brunelleschi#Invention_...