Events By Place Roman Empire Septimus Severus dies in Britain, and's later deified by the Senate. The city of York becomes the capital of Britannia Inferior, a northern province of the Roman Empire. February 4 — Caracalla and Publius Septimius Geta succeed their father Septimius Severus as Roman Emperors. Dio Cassius becomes consul. Asia January — Cao Cao writes Ràng Xiàn Zì Míng Běn Zhì Lìng (讓縣自明本志… (More on 211)