Codex Argenteus (The Silver Bible), 6th c translation of the Bible into the Gothic language.
Codex Amiatinus, 8th c, the earliest surviving manuscript of the nearly complete Bible (Latin Vulgate).
Codex Abrogans, 8th c glossary from Latin into Old High German
Codex Augiensis, 9th c manuscript of the Pauline Epistles in double parallel columns of Greek and Latin.
The Leningrad Codex (1008) is the oldest complete manuscript of the Hebrew Bible in Hebrew.
Codex Calixtinus, 12th c advice for pilgrims following the Way of St James.
Codex Cumanicus (12th c)
Wiesbaden Codex (ca. 1200), containing the collected works of Hildegard of Bingen. It is a giant codex, weighing 15 kg. A lingua ignota, one of the earliest known constructed languages, is described in it.
In Lebor Ogaim (The book of Ogams) (1390) is an Old Irish treatise on the ogham alphabet.
Flateyjarbók (Flatey Book), 14th c. The sagas of the Norse kings are compiled in this Icelandic manuscript.
Libellus de Medicinalibus Indorum Herbis (Little Book of the Medicinal Herbs of the Indians), translated by Juan Badiano from a Nahuatl original (1552). It is a book describing herbal remedies used by the Aztecs.