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    De L'Isle-Adam, Master Knights Hospitaller  
Philippe Villiers de L'Isle-Adam was a prominent member of the Knights Hospitaller at Rhodes and later Malta. Having risen to the position of Prior of the Langue of Auvergne, he was elected Grand Master of the Order in 1521. He commanded th...
 
    Anna Komnene, Wrote the Alexiad  
Anna Komnene, Latinized as Comnena, was a Greek princess, scholar, physician, hospital administrator, and the daughter of Emperor Alexios I Komnenos of Byzantium and Irene Doukaina. She wrote the Alexiad, an account of her father’s reign, w...
 
 
750 - 803
  Irene of Athens, Byzantine Empress  
Irene of Athens, Byzantine empress (797-802). She served (780-90) as regent for her son, Constantine VI, and later was made (792) joint ruler. Devoted to the Orthodox Church, she bent most of her efforts to suppressing iconoclasm. In 797 Ir...
 
 
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 wr...
 
 
200 - 250
  Diogenes Laërtius, Biographer of Greek Philosophers  
Diogenes Laërtius was a biographer of the Greek philosophers. Nothing is definitively known about his life, but his surviving Lives and Opinions of Eminent Philosophers is a principal source for the history of ancient Greek philosophy....
 
    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 C...
 
 
120 - 180
  Pausanias, Description of Greece  
Pausanias was a Greek traveler and geographer of the 2nd century AD, who lived in the times of Hadrian, Antoninus Pius and Marcus Aurelius. He is famous for his Description of Greece, a lengthy work that describes ancient Greece from firsth...
 
 
90 - 168
  Ptolemy, Astronomer / Mathematician  
Claudius Ptolemy was a Greco-Egyptian writer of Alexandria, known as a mathematician, astronomer, geographer, astrologer, and poet of a single epigram in the Greek Anthology. He lived in the city of Alexandria in the Roman province of Egypt...
 
 
46 - 120
  Plutarch, Roman Historian  
Plutarch is the most famous biographer of the ancient world and the author of a famous collection now known as Plutarch's Lives. Plutarch's original title was Parallel Lives of Famous Greeks and Romans, and that describes his unique approac...
 
 
10 - 70
  Heron of Alexandria, Inventor Steam Engine  
Heron of Alexandria was an ancient Greek mathematician who was a resident of a Roman province (Ptolemaic Egypt); he was also an engineer who was active in his hometown of Alexandria. He is considered the greatest experimenter of antiquity a...
 
 
4 BC - 30
  John the Baptist, Forerunner of Jesus  
John the Baptist (late 1st century BC – c. AD 30) was an itinerant preacher and a major religious figure in Christianity, Islam (known as Yahya ibn Zakariyya), the Bahá'í Faith, and Mandaeism. John is described as having the unique pract...
 
    Strabo, Greek Historian  
Strabo was a Greek historian, geographer and philosopher. Strabo is mostly famous for his 17-volume work Geographica, which presented a descriptive history of people and places from different regions of the world known to his era. Although...
 
    Posidonius, Greek Philosopher  
Posidonius of Apameia or of Rhodes was a Greek Stoic philosopher, politician, astronomer, geographer, historian and teacher native to Apamea, Syria. He was acclaimed as the greatest polymath of his age. None of his vast body of work can be...
 
    Hipparchus, Astronomer  
Hipparchus was the most important Greek astronomers of his time. He very accurately cataloged over 1,000 stars and invented the mathematical science of trigonometry. Ptolemy was a great admirer of Hipparchus's research and recorded some of...
 
    Polybius, History of The Rise of Rome  
Polybius was a Greek historian of the Hellenistic period noted for his work The Histories, which covered the period of 264–146 BC in detail. The work describes the rise of the Roman Republic to the status of dominance in the ancient Mediter...
 
       
         
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