The First Graffitists? The Romans

We all may think that street art and graffiti are modern phenomena but graffiti has a long and storied history - maybe even from cave paintings. Some of the more interesting graffit still exists on the walls in Pompeii. To better understand the ancient Roman world, one archaeologist looks at the graffiti, love notes and poetry alike, left behind by Pompeians

Read more: http://www.smithsonianmag.com/history-archaeology/Reading-the-Writing-on-Pompeiis-Walls.html

Want to learn how to do it yourself? Try reading Ancient Graffiti in Context (Routledge Studies in Ancient History) and also The common people of Pompeii;: A study of the graffiti, (Johns Hopkins university studies in archaeology)