sentences:  Jenson's design and the very similar roman types cut by Francesco Griffo c. 1499 and Erhard Ratdolt c. 1486 are acknowledged as the definitive and archetypal roman faces that set the pattern for the majority of western text faces that followed.The Jenson roman was an explicitly typographic letter designed on its own terms that declined to imitate the appearance of hand-lettering.Its effect is one of a unified cohesive whole, a seamless fusion of style with structure, and the successful convergence of the long progression of preceding letter styles.