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250

Centuries: 2nd century - 3rd century - 4th century

Decades: 200s 210s 220s 230s 240s - 250s - 260s 270s 280s 290s 300s

Years: 245 246 247 248 249 - 250 - 251 252 253 254 255

Events

Diophantus wrote Arithmetica the first systematic treatise on algebra
A group of Franks penetrated as far as Tarragona in Spain (approximate date)
Goths invaded Moesia

Births

Maximian, Roman emperor (approximate date)
Constantius Chlorus, Roman emperor and father of Constantine the Great (approximate date)
Arius[?], Christian priest and namesake of Arianism

Deaths

January 20 - Pope Fabian

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