ca. 1st century AD - The Ligurian language and traditions prove resistant to the process of Latinization, resulting in an area of stable bilingualism between the Po and the Ligurian Sea. The Pictish language is born out of contact between the Iberic language of northern Britannia and Celtic Briton. The Chinese invent paper. Roman colonization of the Danube basin and the Rhine river valley. The dromedary is introduced to Egypt and the Sahara. The Kingdom of Kushan is powerful and controls the area between Central Asia and India. 47 The Romans exact tribute from the Frisians.