Health & Medicine in the 3rd century

10 sourced entries, 200 CE to 270 CE, oldest first. Also see Health & Medicine across every century or everything else in the 3rd century.

• 200Human population reaches about 257 million.source
• 219Tuoba Liwei becomes the first chieftain of the Tuoba clan of the Xianbei people.source
• 250An epidemic begins in Ethiopia, moves into Egypt and the Roman colonies in North Africa, and spreads through the Roman Empire (named the Plague of Cyprian, after St. Cyprian, bishop of Carthage).source
• 251A 15-year plague begins in the Roman Empire.source
• 251In Rome, Hostilian, son of Decius, succeeds his father, while Trebonianus Gallus is proclaimed Emperor by the troops. Gallus accepts him as co-emperor, but an outbreak of plague strikes the city, and kills Hostilian.source
• 251Sima Yi passes away in Luoyang.source
• 255March 23 – Sima Shi passes away.source
• 256The great pandemic of the Roman world strikes violently in Pontus on the Black Sea, and causes enormous loss of life in Alexandria, encouraging thousands to embrace Christianity.source
• 259Emperor Valerian leads an army (70,000 men) to relieve Edessa, besieged by the forces of Persian King Shapur I. An outbreak of a plague kills many legionaries, weakening the Roman position in Syria.source
• 270Emperor Claudius II Gothicus fights a drawn-out campaign against the Gothic raiders in the Balkans, with setbacks suffered on both sides. Eventually, many Goths die of plague and others are absorbed into the Roman legions.source