Writing tools and substrates influenced written forms. For example, as early as the second century, Greek scribes made their pens from hard reeds cut into nibs and split at the tip to aid ink flow. These pens gave their writing style a different character than writing by Egyptian scribes, who used soft reeds to brush ink onto the substrate. What was the more rounded writing style the Greeks developed, which could be written more quickly because the rounded letters were formed with fewer strokes?