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    Hadrian's Wall  
One of the greatest monuments to the power - and limitations - of the Roman Empire, Hadrian's Wall ran for 73 miles across open country. By the time Hadrian became Emperor in 117 AD the Roman Empire had ceased to expand. Hadrian was concerned t...
 
 
129 - 217
  Galen of Pergamum, Roman Physician  
Aelius Galenus or Claudius Galenus, better known as Galen of Pergamum (modern-day Bergama, Turkey), was a prominent Roman physician and philosopher of Greek origin, and probably the most accomplished medical researcher of the Roman period. His theor...
 
    Almagest, Ptolemy  
The main desire of Ptolemy in writing his Almagest is to explain and account for the motions of the apparently erratic celestial beings in terms of perfect and circular motions. In doing so he introduces the epicyclic (which states that the center of...
 
 
161 - 192
  Commodus, 18th Roman Emperor  
Commodus was Roman Emperor from 180 to 192. He also ruled as co-emperor with his father Marcus Aurelius from 177 until his father's death in 180. His name changed throughout his reign; see changes of name for earlier and later forms. His accession as...
 
    Celsus, Opponent of Early Christianity  
According to the Christian father Origen, Celsus was a 2nd-century Greek philosopher and opponent of Early Christianity. He is known for his literary work, The True Word, which survives exclusively in Origen's quotations from it in Contra Celsum. Thi...
 
 
180 - 242
  Ardashir I, The Unifier, Founder Sasanian Empire  
Ardashir I or Ardeshir I, also known as Ardashir the Unifier, was the founder of the Sasanian Empire. He was the ruler of Estakhr since 206, subsequently Pars Province since 222, and finally "King of Kings of Sasanian Empire" in 224 with the overthro...
 
 
193 - 264
  Valerian, Roman Emperor from 253 to 260 AD  
Valerian, also known as Valerian the Elder, was Roman Emperor from 253 to 260 AD. He was taken captive by Sassanian Persian king Shapur I after the Battle of Edessa, becoming the first Roman Emperor to be captured as a prisoner of war, causing instab...
 
 
204 - 249
  Philip the Arab, 33rd Roman Emperor  
Marcus Julius Philippus also known commonly by his nickname Philip the Arab, also known as Philip, was Roman Emperor from 244 to 249. He was born in present-day Syria to a Syrian father, and went on to become a major figure in the Roman Empire. He ac...
 
 
205 - 270
  Plotinus, Father of Neoplatonism  
Plotinus was a major philosopher in the ancient world and is widely considered the father of Neoplatonism. Much of our biographical information about him comes from Porphyry's preface to his edition of Plotinus' Enneads. His metaphysical writings hav...
 
 
214 - 275
  Aurelian, 44th Roman Emperor  
Aurelian was the 44th Emperor of the Roman Empire from 270 to 275. Born in humble circumstances, he rose through the military ranks to become emperor. During his reign, he defeated the Alamanni after a devastating war. He also defeated the Goths, Van...
 
 
216 - 274
  Mani, Prophet and Founder of Manichaeism  
Mani was the prophet and the founder of Manichaeism, a gnostic religion of Late Antiquity which was once widespread but is now extinct. Mani was born in or near Seleucia-Ctesiphon in Parthian Babylonia, at the time still part of the Parthian Empire....
 
 
240 - 270
  Shapur I the Great, King Sasanian Empire  
Shapur I the Great was the second shahanshah (king of kings) of the Sasanian Empire. The dates of his reign are commonly given as 240/42 270/72, but it is likely that he also reigned as co-regent (together with his father) prior to his father's dea...
 
 
240 - 275
  Zenobia, Queen Palmyrene Empire  
Zenobia was a 3rd-century Queen of the Palmyrene Empire in Syria, who led a famous revolt against the Roman Empire. The second wife of King Septimius Odaenathus, Zenobia became queen of the Palmyrene Empire following Odaenathus' death in 267. By 269,...
 
 
244 - 311
  Diocletian, 51st Roman Emperor  
Gaius Aurelius Valerius Diocletianus was Roman Emperor from 20 November 284 to 1 May 305. Diocletian was one of the few emperors of the third and fourth centuries to die naturally, and the first in the history of the empire to retire voluntarily. Onc...
 
 
256 - 287
  Saint Sebastian, Persecution of Christians  
Saint Sebastian was an early Christian saint and martyr. According to Christian belief, he was killed during the Roman emperor Diocletian's persecution of Christians. He is commonly depicted in art and literature tied to a post or tree and shot with...
 
       
 
         
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