Google is today celebrating the 1038th birthday of the Muslim philosopher - Ibn Sina.

Ibn Sina also known as Avicenna, wrote over 100 books - the most influential of which is the Al Qanun fil-Tibb, ‘The Canon of Medicine.’ He is regarded as one of the most significant physicians, astronomers, thinkers and writers of the Islamic Golden Age.

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As well as philosophy and medicine, he wrote on astronomy, alchemy, geography and geology, psychology, Islamic theology, logic, mathematics, physics, and works of poetry.