Al-Kindi was one of the first great scientists that set the stage for the brilliant Islamic tradition of learning. His works in philosophy, cosmology, mathematics, optics, cryptology and medicine had a tremendous influence.
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Ibn Rushd (Averroes), was a leading philosopher of the Middle Ages. His commentaries on Aristotle became a major source for understanding the work of that thinker in the 13th and 14th centuries.
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Al Battani (Albategnius) introduced a number of trigonometric relations, and his Kitāb Az-Zīj was frequently quoted by many medieval astronomers, including Copernicus.
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Abū al-Wafāʾ Būzjānī was a Muslim astronomer and mathematician, who made important contributions to the development of trigonometry.
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Traders from Venice heard of his successful method and took this knowledge back to contemporary Italy. They called it "Quarantena" ("the forty" in Italian). This is where the word "quarantine" comes from. The origin of the methods currently being used in much of the world to fight pandemics have their origins in the Islamic world.
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Allah says in the Quran: "Who saves one human life, it is as if he has saved all mankind" - (5:32).
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Even today Ibn Sina's method saves thousands, perhaps millions, of lives. Ma sha Allah, that is another legacy filled with barakah!
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Note: Ibn Sina's full name was Abu Ali Al-Hussein Ibn Abdullah Ibn Sina. In the west he is also known by the Latin version of his name: Avicenna.
