Where is graffiti done?

Graffiti has been around for ages. They still have ancient graffiti around from the Roman times. I have also seen some stuff from old school China. As long as people have had opinions there has probably been graffiti so maybe you should look up where the first wall was created.

People painted on cave walls, probably before there was even formalized language . There is also artwork inside and out side the pyramids . Check out the Caves at Lascaux in France for some examples .