Jawaban:

The origins of modern graffiti can be traced back to the late 1960s in the United States, specifically in Philadelphia and New York City

Penjelasan:

Graffiti, in various forms, has existed for thousands of years. The origins of modern graffiti can be traced back to the late 1960s in the United States, specifically in Philadelphia and New York City. The graffiti movement of that time was closely associated with hip-hop culture and urban youth, and it was primarily used as a form of self-expression and a way to make a statement about social and political issues.