Claudius Ptolemy's Accomplishments

Claudius Ptolemy was born in Ptolemais Hermiou in the The baid and lived in the city of Alexandria in the Roman province of Egypt and was Greek by birth and was a citizen of Rome . He was a Greco-Egyptian writer of Alexandria, known as a mathematician, astronomer, geographer, astrologer, and poet of a single epigram in the Greek Anthology. Most information about Ptolemy’s life is unknown or not definite, several efforts to find the chronicles of Ptolemy’s personal life have gone futile. Ptolemy lives only through his works. Studies reveal that he spent most his life in pursuit of knowledge.
Mathematical discoveries
Measuring positions of the planets
Claudius Ptolemy was the first to use trigonometry to calculate the positions of the Sun, the