27 BC: Gaius Octavianus becomes sole ruler of Rome and as Augustus the first emperor.
395: After the death of emperor Theodosius I, the Roman Empire is partitioned in the (Eastern) Roman Empire and the (Western) Roman Empire. The region becomes part of the Western part of the Empire.
400s: After the collapse of the Roman Empire, Jersey remains outside the Kingdom of the Franks. Celts from Britain settle in Brittany and the Channel Islands.
2005: After a reorganization the queen is represented by a lieutenant-governor. Jersey has a parliament elected in free elections on a universal suffrage, headed by the bailiff, and a chief-minister is responsible to the parliament.