ISB ~ Acts 18 v2

Aquila:He and his wife were Jewish Christians recently come from Rome. The couple worked closely with Paul in Corinth (18:3), moved on from there to Ephesus (18:18-19), and eventually made it back to Rome (Rom 16:3-5). They were longtime supporters of his apostolic work (1 Cor 16:19; 2 Tim 4:19).

Claudius:The Roman Caesar from A.D. 41 to 54. He expelled the Jewish population of Rome from the capital in A.D. 49 because of disturbances instigated by a certain “Chrestus”. Many scholars take this as a reference to Christ (Lat. Christus) and suggest the commotion was caused by disputes over the messiahship of Jesus in the synagogue communities of the city.