How to write an introduction against graffiti

The question as to whether any forms of graffiti can be considered art is a controversial area. Is it vandalism when it is placed on the side of a building or a car and art when it is on a canvas on someone's wall or in a gallery- what is the difference?

The developments of science in europe and invention fo scientific method took palce in 12 th c during high middle ages according some historians each century from that now on could be called a scientific revolution so it didn't change that much in comaprission to europe in comaprission to oteh civilization which also had soem sort of scientfic development there it als occured but in longer amount of time