220s

Roman Empire

• The Goths invade Asia Minor and the Balkans.
• An Indian delegation visits the Roman emperor Elagabalus.
• Great frost in England is said to have lasted for five months.^[1]
• Imperator Marcus Aurelius Antoninus Augustus (Elagabalus) and Publius Valerius Comazon become Roman consuls.
• Elagabalus divorces Julia Paula and marries Aquilia Severa, a Vestal Virgin. The wedding causes an enormous controversy – traditionally, the punishment for breaking celibacy is death by being buried alive.
• King Ardashir I, founder of the Sassanid dynasty, gains support from some Parthian sub-kings and revolts against the rule of Vologases VI. Ardashir, a grandson of Sasan, had ruled Persis since 208 and six years earlier gained control of the region surrounding Persepolis.

Asia

• Three Kingdoms: The northern part of China is under the control of Cao Cao, Imperial Chancellor and ruler of the Kingdom of Wei. Following his death on March 15, his son Cao Pi receives the abdication of Emperor Xian of Han on December 10, and proclaims himself emperor of Cao Wei. This ends the Han dynasty, the former emperor being created Duke of Shanyang.

Religion

• The Wei dynasty will give official recognition to Taoism as its religious sect, and the sect's celestial masters will reciprocate by giving spiritual approbation to the Wei as successors to the Han. By the end of the century most powerful families in northern China will subscribe to Daoist principles.

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