What is the History of Street Art?
Street Art origin can usually be traced to graffiti which showed up on the side of train cars and walls in 1920s and 1930s in New York City, done by gangs.
It gained popularity in the 70s and 80s where it became an outlet for creativity, politics, social issues and more.
It is still considered an illegal activity in many parts of the world, though today you can find fantastic street art in most cities and towns around the world.
A graphical history of the movement is as follows (Source: https://www.widewalls.ch/the-history-of-street-art/)
I have found street art to be a window into a sub-culture, community in many parts of the world. Issues pertaining to the locals are seen widely in this form of the Art. I have particularly loved the street art in South America. Colombia, as I remember, has some of the best street art I have come across – a lot in Bogota and Medellin. In London, where I am currently based, we have a wealth of street art talent. Banksy is probably the most famous. However, if you head to East London (near Brick Lane), you can enjoy many works. I had done a walking tour and the guide brought good context to the works. I would highly recommend art walking tours to get a context of the works you will see.