Wikipedia's first sentence called it “among the greatest of any time”. Today it says “one of the few islamic astronomers to be known for doing original observations”.
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The opening as it read in 2025
Persian astronomer and mechanician (1100–1200) This article is about the 12th century scientist. Abū al-Fath Abd al-Rahman Mansūr al-Khāzini or simply al-Khāzini ( أبوالفتح عبدالرحمن منصور الخازنی ( Persian ) , flourished 1115–1130) was an Iranian astronomer , mechanician and physicist of Byzantine Greek origin who lived during the Seljuk Empire . His astronomical tables , written under the patronage of Sultan Sanjar ( Zīj al-Sanjarī , 1115), are considered to be one of the major works in mathematical astronomy of the medieval period. He is considered to have been one of the greatest scientists of his era, among the greatest makers of scientific instruments of any time, and as "the physicist of all physicists". Al-Khazini is one of the few Islamic astronomers to be known for doing original observations. He provided the positions of fixed stars, and for oblique ascensions and time-equations for the latitude of Marv in which he was based. He also wrote extensively on various calendrical systems and on the various manipulations of the calendars. He also devised the world's most precise instrument for weighing ordinary objects, determining specific gravities, and even examining the composition of alloys. On the basis of his detailed description, it has been possible to reconstruct his complex mechanism, which he dubbed "The Comprehensive Balance". Modern study affirms his claim to its extraordinary accuracy of 1:60,000. Al-Khazini was the author of an encyclopedia on scales and water-balances called The Book of the Balance of Wisdom ( Kitab Mizan al-Hikmah, 1121 ), which explored theories of density, specific gravities of metals, precious stones, and liquids, as well as principles of equilibrium. The book is thought to have been "one of the most sophisticated and advanced balances to be designed and manufactured in the medieval Islamic world", and "the most comprehensive work on [ weighing ] in the Middle Ages , from any cultural area". Encyclopaedia of Islam, Second Edition . The Story of Civilization: The Age of Faith . History of Civilizations of Central Asia . "Al-Khazini", Dictionary of Scientific Biography , Vol. (1948). 'Alī al-Bayhaqī's Tatimmat Siwān al-Hikma: A Biographical Work on Learned Men of the Islam.
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 1295153274.
The opening as it stood in 2010
people3 Abu al-Fath Abd al-Rahman Mansour al-Khāzini or simply Abu al-Fath Khāzini ( ) (flourished 1115–1130) was a scientist , astronomer , physicist , biologist , alchemist , mathematician and philosopher from Merv , then in the Khorasan province of Persia (located in today's Turkmenistan ), who made important contributions to physics and astronomy . He is considered one of the greatest scholar from Merv. Hall wrote the following on al-Khazini: "His hydrostatic balance can leave no doubt that as a maker of scientific instruments he is among the greatest of any time." Abd Al-Rahman Al-Khazini , Science and Its Times (2006). "Al-Khazini", Dictionary of Scientific Biography , Vol.
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The opening as it stood in 2015 3 passages from the previous snapshot no longer appear
Abu al-Fath Abd al-Rahman Mansour al-Khāzini or simply Abu al-Fath Khāzini ( , ) (flourished 1115–1130) was a Muslim astronomer of Persian Greek ethnicity from Merv , then in the Khorasan province of Persia (located in today's Turkmenistan ). Merv was known for its literary and scientific achievements.
Red text was written in or rewritten since the previous snapshot. Their copy is revision 664048854.
The opening as it stood in 2020 2 passages from the previous snapshot no longer appear
Abū al-Fath Abd al-Rahman Mansūr al-Khāzini or simply al-Khāzini ( أبوالفتح عبدالرحمن منصور الخازنی ( Persian ) , flourished 1115–1130) was an Iranian astronomer of Greek origin from Seljuk Persia .His astronomical tables written under the patronage of Sultan Sanjar ( Zīj al-Sanjarī , 1115) is considered to be one of the major works in mathematical astronomy of the medieval period.He provided the positions of fixed stars, and for oblique ascensions and time-equations for the latitude of Marv in which he was based.He also wrote extensively on various calendrical systems and on the various manipulations of the calendars.He was the author of an encyclopedia on scales and water-balances .The Cambridge History of Iran . : Check |archive-url= value ( help ) CS1 maint: url-status ( link ) "پژوهشهای ایرانی | سرنوشت خازنی: داستان غم انگیز دانشمندان ایران" (in Persian) .Encyclopaedia of Islam, Second Edition .The Story of Civilization: The Age of Faith .(1948). 'Alī al-Bayhaqī's Tatimmat Siwān al-Hikma: A Biographical Work on Learned Men of the Islam.
Red text was written in or rewritten since the previous snapshot. Their copy is revision 949697022.
The opening as it stood on October 6, 2023 1 passage from the previous snapshot no longer appear
Persian astronomer and mechanician (1100–1200) This article is about the 12th century scientist. Abū al-Fath Abd al-Rahman Mansūr al-Khāzini or simply al-Khāzini ( أبوالفتح عبدالرحمن منصور الخازنی ( Persian ) , flourished 1115–1130) was an Iranian astronomer of Greek origin from Seljuk Empire . His astronomical tables written under the patronage of Sultan Sanjar ( Zīj al-Sanjarī , 1115) is considered to be one of the major works in mathematical astronomy of the medieval period. He provided the positions of fixed stars, and for oblique ascensions and time-equations for the latitude of Marv in which he was based. He also wrote extensively on various calendrical systems and on the various manipulations of the calendars. He was the author of an encyclopedia on scales and water-balances . The Cambridge History of Iran . "پژوهشهای ایرانی | سرنوشت خازنی: داستان غم انگیز دانشمندان ایران" (in Persian) . Encyclopaedia of Islam, Second Edition . The Story of Civilization: The Age of Faith . (1948). 'Alī al-Bayhaqī's Tatimmat Siwān al-Hikma: A Biographical Work on Learned Men of the Islam.
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Today
Wikipedia's first sentence called it “among the greatest of any time”. Today it says “one of the few islamic astronomers to be known for doing original observations”. Read the current article and compare.
2010
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Oct '23
2025
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What Wikipedia says this is
Every article opens by defining its subject. This one was redefined since 2010, and today's defining sentence is their current revision.
Then
among the greatest of any time
Now
one of the few islamic astronomers to be known for doing original observations
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.
