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Roman emperor Hadrian adopts Antoninus Pius as his son, effectively making him his successor.
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AD 138
Calendar year
Year 138 (CXXXVIII) was a common year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Niger and Camerinus. The denomination 138 for this year has been used since the early medieval period, when the Anno Domini calendar era…Source: Wikipedia (CC BY-SA)
Roman emperor
Ruler of the Roman Empire
The Roman emperor was the ruler and monarchical head of state of the Roman Empire, starting with the granting of the title augustus to Octavian in 27 BC. The term emperor is a modern convention, and did not exist as such during the Empire. When a given Roman is described as…Source: Wikipedia (CC BY-SA)
Hadrian
Roman emperor from 117 to 138
Hadrian was Roman emperor from 117 to 138. Hadrian was born in Italica, close to modern Seville in Spain, an Italic settlement in Hispania Baetica; his branch of the Aelia gens, the Aeli Hadriani, came from the town of Hadria in eastern Italy. He was a member of the…Source: Wikipedia (CC BY-SA)
Antoninus Pius
Roman emperor from 138 to 161
Titus Aelius Hadrianus Antoninus Pius was Roman emperor from AD 138 to 161. He was the fourth of the Five Good Emperors from the Nerva–Antonine dynasty.Source: Wikipedia (CC BY-SA)
February 25
Day of the year
February 25 is the 56th day of the year in the Gregorian calendar; 309 days remain until the end of the year.Source: Wikipedia (CC BY-SA)