How has drawing changed over time?

Why might powerful rulers and wealthy business people choose to become partons of the arts during the renaissance? What were Rag Figures? What does baccalaureus artium mean? How was the renaissance a majour turning point in history? Woven pictures hung on the walls in home of nobles were called? What is a color palette in a document? Who had many talents in the renaissance? Who made up the name colors? What is the present perfect of paint? Has anyone know of a painter named R Gladys Harris and her painting Ontario Highlands? How The subject matter of painting done in the grand manner had to be? What was the attitude of church leaders and the wealthy towards the art in the Renaissance and why? What techniques have been used in painting The Hay Wain? Who are the top 1990's fashion designers? Why does Dufay's Nuper rosarum flores repeat the fixed melody on 6 4 2 and 3 units per breve? Who is the dedication at the end of the film The Artist? Who invented pencilinin? How did the Victorians view their photographs? Which style was Henry Tanner influenced by when he studied in Paris? What is the difference between abstract art and non-objective art?