The Ingaevones or Ingvaeones ("people of Yngvi"), as described in Tacitus's Germania, written c. 98 CE, were a West Germanic cultural group living along the North Sea coast in the areas of Jutland, Holstein, Frisia and the Danish islands, where they had by the first century BCE become further differentiated to a foreigner's eye into the Frisians, Saxons, Jutes and Angles. The postulated common group of closely related dialects of the Ingvaeones is called Ingvaeonic or North Sea Germanic. Tacitu… (More on Inguaeones)