Public Figures & Cultural Luminaries

Sciences & Discovery

37

🕯️ 950

Alhazen (Ibn al-Haytham)

الحسن بن الهيثم

Iraq

c. 965 CE – 1040 CE (~75 years old)

Pioneer of modern optics and the experimental scientific method whose Book of Optics (Kitab al-Manazir) proved that vision occurs when light rays enter the eye and explained the camera obscura.

Cairo, Egypt

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Sciences & Discovery

41

🕯️ 980

Muhammad ibn Musa al-Khwarizmi

محمد بن موسى الخوارزمي

Uzbekistan

c. 780 CE – c. 850 CE (~70 years old)

Persian polymath at Baghdad's House of Wisdom who founded algebra (al-jabr), gave his name to the 'algorithm', and introduced Hindu-Arabic numerals and decimal positional notation to the West.

Baghdad, Iraq

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Sciences & Discovery

38

🕯️ 890

Brahmagupta

ब्रह्मगुप्त

India

598 CE – c. 668 CE (~70 years old)

Genius astronomer and mathematician who formulated the mathematical rules of zero (shunya) as a number, operations with negative numbers, and the Brahmagupta formula for cyclic quadrilaterals.

Ujjain (Madhya Pradesh), India

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Sciences & Discovery

35

🕯️ 920

Aryabhata (Aryabhata I)

आर्यभट

India

476 CE – c. 550 CE (~74 years old)

Master of Gupta Dynasty mathematics and astronomy whose Aryabhatiya introduced trigonometry (sine tables), calculated Pi to 3.1416, and proved the Earth rotates on its axis.

Rajgir / Nalanda (Bihar), India

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Sciences & Discovery

39

🕯️ 710

Charaka

चरक

Pakistan

c. 3rd-2nd century BCE – c. 2nd century BCE

Ancient Indian physician and philosopher who compiled the Charaka Samhita, the foundational treatise of Ayurvedic internal medicine, cellular biology, and medical ethics.

Taxila (Punjab), Pakistan

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Sciences & Discovery

46

🕯️ 780

Sushruta

सुश्रुत

India

c. 6th century BCE – c. 5th century BCE

Ancient Indian surgeon hailed as the 'Father of Plastic Surgery', whose Sanskrit compendium Sushruta Samhita detailed rhinoplasty forehead flaps, cataract couching, and 121 surgical instruments.

Varanasi (Uttar Pradesh), India

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Sciences & Discovery

42

🕯️ 670

Heron of Alexandria (Hero)

Ἥρων ὁ Ἀλεξανδρεύς

Egypt

c. 10 CE – c. 75 CE (~65 years old)

Brilliant Greco-Egyptian engineer and geometer who invented the aeolipile (the world's first steam engine), automatic temple doors, programmable theater automata, and Heron's formula.

Alexandria, Egypt

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Sciences & Discovery

36

🕯️ 940

Hippocrates of Kos

Ἱπποκράτης ὁ Κῷος

Greece

c. 460 BCE – c. 370 BCE (~90 years old)

'Father of Medicine' who liberated healing from superstition, established clinical observation of symptoms, and created the foundational medical code of ethics: the Hippocratic Oath.

Kos, Greece

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Sciences & Discovery

41

🕯️ 810

Galen of Pergamon (Aelius Galenus)

Κλαύδιος Γαληνός

Turkey

129 CE – c. 216 CE (~87 years old)

Preeminent physician of the Roman Empire whose experimental anatomical vivisections, surgical techniques, and humoral pharmacology dominated Western and Islamic medicine for 1,500 years.

Bergama (Izmir), Turkey

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Sciences & Discovery

41

🕯️ 850

Claudius Ptolemy

Κλαύδιος Πτολεμαῖος

Egypt

c. 100 CE – c. 170 CE (~70 years old)

Greco-Egyptian polymath whose monumental astronomical treatise, the Almagest, and Geographia defined celestial mechanics and global cartography for fourteen centuries.

Alexandria, Egypt

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Sciences & Discovery

45

🕯️ 680

Hipparchus of Nicaea

Ἵππαρχος ὁ Νικαεύς

Turkey

c. 190 BCE – c. 120 BCE (~70 years old)

Greatest observational astronomer of antiquity, who discovered the precession of the equinoxes, compiled the first comprehensive star catalog, and founded trigonometry.

Rhodes, Greece

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Sciences & Discovery

41

🕯️ 760

Aristarchus of Samos

Ἀρίσταρχος ὁ Σάμιος

Greece

c. 310 BCE – c. 230 BCE (~80 years old)

Ancient Greek astronomer and mathematician who proposed the first known heliocentric model of the universe eighteen centuries before Copernicus, placing the Sun at the center of planetary orbits.

Pythagoreio (Samos), Greece

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Sciences & Discovery

46

🕯️ 910

Euclid of Alexandria

Εὐκλείδης

Egypt

c. 325 BCE – c. 265 BCE (~60 years old)

'Father of Geometry' whose thirteen-book treatise The Elements established the axiomatic-deductive method that formed the bedrock of mathematics and science for two millennia.

Alexandria, Egypt

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Sciences & Discovery

44

🕯️ 820

Eratosthenes of Cyrene

Ἐρατοσθένης ὁ Κυρηναῖος

Libya

c. 276 BCE – c. 194 BCE (~82 years old)

Chief Librarian of the Great Library of Alexandria who calculated the Earth's circumference with astonishing accuracy using sun shadows and invented the Sieve of Eratosthenes for prime numbers.

Alexandria, Egypt

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Sciences & Discovery

43

🕯️ 590

Anaximander of Miletus

Ἀναξίμανδρος

Turkey

c. 610 BCE – c. 546 BCE (~64 years old)

Early Greek natural philosopher who introduced the concept of the Apeiron (the Boundless), drew the first world map, and proposed an early theory of biological evolution.

Miletus (Balat), Turkey

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Sciences & Discovery

44

🕯️ 740

Thales of Miletus

Θαλῆς ὁ Μιλήσιος

Turkey

c. 624 BCE – c. 548 BCE (~76 years old)

Regarded as the first scientist and natural philosopher in Western history, who predicted the solar eclipse of 585 BCE and identified water as the fundamental cosmic principle.

Miletus (Aydın), Turkey

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Philosophy & Thought

40

🕯️ 560

Ibn Tufayl (Abubacer)

أبو بكر محمد بن عبد الملك بن طفيل القيسي

Spain

c. 1105 CE – 1185 CE (~80 years old)

Andalusian philosopher and royal physician whose pioneering allegorical novel Hayy ibn Yaqzan (Alive, Son of Awake) explored human reason discovering supreme truth in total isolation.

Marrakech, Morocco

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Philosophy & Thought

37

🕯️ 710

Al-Farabi (Abu Nasr al-Farabi)

أبو نصر محمد الفارابي

Kazakhstan

c. 872 CE – 950 CE (~78 years old)

Revered across medieval civilizations as 'The Second Teacher' (after Aristotle), who integrated logic, Neoplatonic metaphysics, and political philosophy in The Virtuous City.

Damascus, Syria

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