Excerpts from Books and Wikipedia
Augustus, the first Roman Emperor, ordered the building of Augusta Treverorum in -18. Later known as Trier, it lies on the site of a sacred shrine for the Trevari tribe on the banks of the Mosel River. It became an important center for the spread of Christianity. Trier was to flourish as a city of culture and trade. [Furtado: 1001 Days]