19 (XIX)was acommon year starting on Sunday of theJulian calendar, the 19th year of theCommon Era (CE) andAnno Domini (AD) designations, the 19th year of the1st millennium, the 19th year of the1st century, and the 10th and last year of the10s decade. As of the start of 19, the Gregorian calendar was 2 days behind the Julian calendar, which was the dominant calendar of the time.
- Maroboduus, king of theMarcomanni, is deposed by Catualda. This ended the threat to the Romans from German tribes until the reign ofMarcus Aurelius. Rome places them under its protection.
- Julius Caesar Germanicus (33), Roman commandant of theRhine legions and the best loved of Roman princes, died of poisoning. On his deathbed he accusedPiso, the governor ofSyria, of poisoning him.
- Tiberius expels theEgyptians fromRome, and deports 4,000 Jews fromSicily.
- Agrippina the Elder accusesGnaeus Calpurnius Piso, governor ofSyria, of assassinating her husbandGermanicus inAntioch.Piso commits suicide in Rome.
- A Triumphal Arch is built forGermanicus inSaintes.
