Why have most cultures throughout history used artistic works as a form of representation

Artist works are often used to document or commemorate an event or important person. Art can convey both emotion and facts. Wars, troublesome times, and great rulers are often remembered through art

i have 2 answers, but 1 i mostly enjoy. a& b, mostly a though.

answer: the feeling it gives you when you look at it.

explanation:

in every single medium of art, you are supposed to feel something that makes it art. like how a song can make you cry, or how a photograph can make you nostalgic. art is very important for expressing yourself as well, when you are happy, sad, depressed, or angry.