Interlace was a style of Medieval Art by which decorative motifs were added to medium to fill spaces. Loops, Braided patterns, etc. (as found on jewelry and in the Illuminated Manuscript), were all ''filled in'' by various types and styles (depending on The Country or Kingdom of origin). Norse and Angl0-Saxon Art from the 8th Century AD, shows a type of Interlace (or detailed shading), used to fill spaces in engravings with decorative patterns (design to compliment the piece). Interlace is often associated with Knotwork (a very similar Art style of the Period and after). Most examples of ''Literary Interlace'' is found in Illuminated Manuscripts well into the 15th Century AD.