The development of ink truly revolutionized human life. Long before Gutenberg simplified the printing process, ancient cultures in Egypt, Greece and Asia used ink for creating handwritten manuscripts, religious and political documents and works of art. Ink provided people with a permanent means to keep records, create manuscripts and document the world around them. Ink as a sophisticated artistic medium developed sometime between the 7th and 8th centuries in China, where a range of subjects, from religion, history and daily life, were illustrated using brushes fashioned from animal hair and feathers. Applied to scrolls of paper or sheets of silk, these detailed works of art were forerunners to the approaching development of pen and ink drawings.