For over a thousand years, the quill pen was the primary writing instrument of the Western world. Replacing the reed pen used by ancient scribes, the quill was typically made from the primary wing feathers of large birds like geese, swans, or turkeys. To make a pen, the feather underwent a 'curing' process to harden the barrel, and the tip was precisely cut with a 'pen-knife' to create a nib. The flexibility of the quill allowed for the development of diverse calligraphic styles and the fine lines required for manuscripts. Most of the Great Works of the Renaissance and the Enlightenment, including the U.S. Constitution and the plays of Shakespeare, were written with quills. They remained the dominant tool until the mid-19th century, when mass-produced steel nibs and later fountain pens became more practical. Despite being obsolete, the quill remains a powerful symbol of authorship and the intellectual labor of writing.