**Birthdate:**0350 AD

**Birthplace:**Alexandria, Egypt

**Died:**February 29, 0415

**Arithmetica**. She was later murdered and became a symbol of feminism and of opposition to Catholic ideals.

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1

Hypatia

(Mathematician, Astronomer and Philosopher)

Hypatia was a Hellenistic Neoplatonist philosopher, mathematician, and astronomer who lived during the 4th and 5th centuries. She also taught and served as a counselor. She is remembered for her commentary on Diophantus's **Arithmetica**. She was later murdered and became a symbol of feminism and of opposition to Catholic ideals.

2

Diophantus

(Former mathematician, famous for his work in algebra)

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5

3

Ctesibius of Alexandria

(Inventor, Mathematician)

14

4

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4

Pappus of Alexandria

(Mathematician of antiquity, known for his Synagoge or Collection, and for Pappus's hexagon theorem in projective geometry)

13

2

5

Theon of Alexandria

(Mathematician)

11

2

Theon of Alexandria was a Greek mathematician and scholar. He is credited with editing and arranging Euclid's prominent work *Elements*. He also wrote commentaries on works by Ptolemy and Euclid. Theon of Alexandria's daughter Hypatia also went on to become a famed mathematician.

6

Taher Elgamal

(Cryptographer, Mathematician)

10

2

Taher Elgamal is an Egyptian entrepreneur and cryptographer. Widely regarded as **the father of SSL**, Elgamal is best known for his work at *Netscape Communications Corporation *where he developed *Secure Sockets Layer* (SSL) which helped establish a secure and private communications on the Internet. In 2019, Taher Elgamal was honored with the prestigious *Marconi Prize* along with Paul Kocher.

7

Menelaus of Alexandria

(Mathematician)

6

1

Menelaus of Alexandria was a Greek astronomer and mathematician. *Sphaerica*, his only book to have survived in the form of an Arabic translation, deals with the geometry of the sphere and introduces the concept of spherical triangle. The Arabic version of the book was translated again by Francesco Maurolico, a 16th century mathematician and astronomer.

8

Alam al-Din al-Hanafi

(Mathematician)

1

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