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    Anaximander of Miletus, Philosopher  
Anaximander was a pre-Socratic Greek philosopher who lived in Miletus, a city of Ionia (in modern-day Turkey). He belonged to the Milesian school and learned the teachings of his master Thales. He succeeded Thales and became the second mast...
 
    Eratosthenes, Measuring the Earth  
Eratosthenes of Cyrene was a Greek mathematician, geographer, poet, astronomer, and music theorist. He was a man of learning, becoming the chief librarian at the Library of Alexandria. He invented the discipline of geography, including the...
 
    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...
 
 
78 - 139
  Zhang Heng, Chinese Scientist  
Zhang Heng was a Chinese astronomer, mathematician, inventor, geographer, cartographer, artist, poet, statesman, and literary scholar from Nanyang, Henan. He lived during the Eastern Han Dynasty (AD 25–220) of China. He was educated in the...
 
 
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...
 
 
560 - 636
  Isidore of Seville, Etymologiae Encyclopedia  
Saint Isidore of Seville served as Archbishop of Seville for more than three decades and is considered, as the 19th-century historian Montalembert put it in an oft-quoted phrase, "The last scholar of the ancient world". At a time of disi...
 
    Prince Henry the Navigator  
Henry the Navigator was an infante of the Kingdom of Portugal and an important figure in the early days of the Portuguese Empire. He was responsible for the early development of European exploration and maritime trade with other continents....
 
    Amerigo Vespucci, Namegiver of America  
America is named after Amerigo Vespucci, who was the first European to suggest that the Americas were not the East Indies. Amerigo Vespucci was an Italian merchant and cartographer who voyaged to and wrote about the Americas. His explorator...
 
    Juan de la Cosa, Captain Santa María  
Juan de la Cosa was a Spanish cartographer, conquistador and explorer. He made the earliest extant European world map to incorporate the territories of the Americas that were discovered in the 15th century, sailed with Christopher Columbus...
 
    Piri Reis, Ottoman Admiral, Cartographer  
Ahmed Muhiddin Piri, better known as Piri Reis, was an Ottoman admiral, geographer, and cartographer. He is primarily known today for his maps and charts collected in his Kitab-ı Bahriye (Book of Navigation), a book that contains de...
 
    Pigafetta, Circled the Globe - 1521  
Antonio Pigafetta was an Italian navigator born in Vicenza. He paid a large sum of money to accompany and assist the Portuguese captain Ferdinand Magellan and his Spanish crew on their trip around the world. He kept an accurate journal of t...
 
    Michael Servetus, Physician & Theologian  
Michael Servetus was a Spanish physician and theologian. His views alienated both Roman Catholics and Protestants, beginning with the publication of his first book, De Trinitatis erroribus (1531), in which he denied the Holy Trinity. His m...
 
    Gerardus Mercator, Cartographer  
Gerardus Mercator, Flemish cartographer. He received a master's degree in 1532 from the University of Louvain (Belgium), where he settled. By 24 he was a skilled engraver, calligrapher, and scientific-instrument maker. He and his colleagues...
 
    Abraham Ortelius, 1st Modern Atlas  
Abraham Ortelius (Abraham Ortels) was a cartographer and geographer, generally recognised as the creator of the first modern atlas. He was born in Antwerp in what is now Belgium. A member of the influential Ortelius family of Augsburg, he t...
 
    Petrus Plancius, Dutch Cartographer  
Petrus Plancius was a Dutch astronomer, cartographer and clergyman. He was soon recognized as an expert on the shipping routes to India. He strongly believed in the idea of a North East passage until the failure of Willem Barentsz's third v...
 
       
 
         
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