The first wall paintings were drawn on the walls of caves thousands of years ago. Later and during the time of ancient civilizations, Greeks and Romans wrote their names and protest slogans on the walls of buildings. During World War II, American soldiers used this simple graffiti as a means of communication by writing the words “Kilroy was here” and drawing a bald man with a long nose hanging from the wall with two hands around his head. The goal of American soldiers in that difficult time was to show solidarity in foreign lands and to be “seen”. This visibility was in line with the ultimate motive of contemporary mural painting: to prove presence and show the repetition of this presence as much as possible. “Kilroy was here” easily infiltrated popular culture.