23 letters. 1011-word glossary. Some short manuscripts. This is among what remains of the legacy of St. Hildegard of Bingen OSB, one of the best-known composers of sacred monophony, and the creation of this language she called Lingua Ignota. If confirmed, it could mean that Lingua Ignota is the oldest constructed language in human history, … Continue reading Lingua Ignota — The Earliest Known Constructed Language?