'Perspective' is Latin for 'looking through' — it went from the science of vision to the art of viewpoint.
The art of representing three-dimensional objects on a two-dimensional surface so as to give the appearance of depth and distance. A particular attitude toward or way of regarding something; a point of view. The proper or accurate point of view or evaluation of the relative importance of things.
From Medieval Latin 'perspectiva (ars)' (the science of optics), from Latin 'perspicere' (to look through, to see clearly), a compound of 'per-' (through, thoroughly) + 'specere' (to look at). The root 'specere' derives from PIE *speḱ- (to observe), which produced a wide family across branches: Sanskrit 'spaś-' (spy, see), Avestan 'spas-' (to look), Greek 'skopos' (one who watches), and Old English 'spēowan' (to spy). The word originally designated the optical science of how vision works
The Italian architect Filippo Brunelleschi is credited with demonstrating linear perspective around 1415 by painting the Baptistery of Florence on a small panel with a hole in it, then having viewers look through the hole at a mirror reflecting the painting. The reflected image aligned perfectly with the actual building behind the mirror, proving that mathematical rules could reproduce the appearance of three-dimensional space on a flat surface. The word 'perspective' — from