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Al-Farabi

In 2005 Wikipedia's first sentence called it “persian philosopher and scientist and one of the greatest scientists and philosophers of his time”. Today it says “early islamic philosopher and music theorist”.
Measured, not asserted. Every count, date and revision on this page was taken from Wikipedia's own history and checked against the live article. The words quoted are theirs.
Machine-checked against the full current article on 2026-08-03.
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The opening as it read in October 6, 2023

Islamic philosopher and music theorist (c. 870 – 950/951) Abu Nasr Muhammad al-Farabi ( ; c. 870 — 14 December 950–12 January 951), known in the Latin West as Alpharabius , was a early Islamic philosopher and music theorist .1 He has been designated as "Father of Islamic Neoplatonism ", and the "Founder of Islamic Political Philosophy ". His fields of philosophical interest included—but not limited to, philosophy of society and religion ; philosophy of Language and Logic ; psychology and epistemology ; metaphysics , political philosophy , and ethics . He was an expert in both practical musicianship and music theory , and although he was not intrinsically a scientist, his works incorporate astronomy , mathematics , cosmology , and physics . He is credited as the first Muslim who presented philosophy as a coherent system in the Islamic World , and created a philosophical system of his own, which developed a philosophical system that went far beyond the scholastic interests of his Greco-Roman Neoplatonism and Syriac Aristotelian precursors. That he was more than a pioneer in Islamic philosophy , can be deduced from the habit of later writers calling him the "Second Master", with Aristotle as the first. His impact on philosophy is undeniable, to name a few, Yahya ibn Adi , Abu Sulayman Sijistani , Abu al-Hassan al-Amiri , and Abu Hayyan al-Tawhidi ; Avicenna , Suhrawardi , and Mulla Sadra ; Avempace , Ibn Tufail , and Averroes ; Maimonides , Albertus Magnus , and Leo Strauss . He was known in the Latin West , as well as the Islamic World . There are <ref group=upper-alpha> tags or templates on this page, but the references will not show without a template or template (see the help page ). Fakhry 2002 , passim; Netton 1998 , summary. Stanford Encyclopedia of Philosophy . Stanford Encyclopedia of Philosophy . Stanford Encyclopedia of Philosophy . Journal for the History of Arabic Science . Historical Dictionary of Islam . Stanford Encyclopedia of Philosophy .

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Today
In 2005 Wikipedia's first sentence called it “persian philosopher and scientist and one of the greatest scientists and philosophers of his time”. Today it says “early islamic philosopher and music theorist”. Read the current article and compare.
2005201020152020Oct '232025
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What Wikipedia says this is

Every article opens by defining its subject. This one was redefined since 2005, and today's defining sentence is their current revision.

Then

persian philosopher and scientist and one of the greatest scientists and philosophers of his time

Now

early islamic philosopher and music theorist

Struck red text is no longer in the article; dotted amber text was rewritten. Every revision id links to Wikipedia's copy; the text shown is our own saved copy. Data: /data. Wikipedia text is CC BY-SA; quoted for the record; not affiliated with Wikipedia.

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