Wikipedia's first sentence called it “medieval theologian”. Today it says “english astronomer”. The one-line description Wikipedia serves to search engines and AI systems read “12C English astronomer, translator, priest and diplomat”. It now reads “12th-century English translator and priest”.
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.
We saved snapshots of this article over twenty years; you are reading the 2005 one. Red dashes: removed from Wikipedia since.Pale dots: rewritten; the numbered note shows what it says now.Red text: written in or rewritten since the previous snapshot.1 tap a number or a side note to jump between them
The opening as it read in 2005
Robert of Ketton was a medieval theologian .1Believed to have been educated at the Cathedral School of Paris , in 1134 he travelled to France , the Byzantine Empire , and the Crusader States in Palestine with fellow scholar Herman of Carinthia .2He became the Archdeacon of Pamplona and in 1143 he was commissioned by Peter the Venerable , abbot of Cluny , to translate the Qur'an into Latin .3Entitled Lex Mahumet pseudoprophete , it was the first translation of the book into a European language and remained the standard well into the sixteenth century. v t e4
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 15939917.
The opening as it stood in 2010 2 passages from the previous snapshot no longer appear
Robert of Ketton ( Latin : Robertus Ketenensis ) (1110? – 1160?) was an English medieval theologian , astronomer and Arabist .Ketton , where Robert was either born or perhaps first took holy orders, is a small village in Rutland , a few miles from Stamford . Robert is believed to have been educated at the Cathedral School of Paris . In 1134 he travelled from France to the East for four years with his fellow student and friend Herman of Carinthia (also known as Herman Dalmatin).They visited the Byzantine Empire , the Crusader States in Palestine and Damascus .Both men were to become famous as translators from the Arabic .By 1141 Robert had moved to Spain where the division of the country between Muslim and Christian rulers made it a natural base for translators.Some sources identify him with Robert of Chester ( ), who was also active in Spain as a translator in the 1140s.Although he received support from the Church—he became Archdeacon of Pamplona in 1143—Robert's preference was for translating scientific rather than theological works.He is known to have studied Euclid and to have translated the work of Al Battani and Avicenna , and it seems that he would not have made the translation for which he is famous, that of the Qur'an , without the encouragement of the French Abbot Peter the Venerable , who wished to have access to Islamic texts.In 1142 Robert and other scholars met with Peter the Venerable, who was visiting Spain, and Robert set to work translating the Qur'an into Latin . The translation was done by 1143; entitled Lex Mahumet pseudoprophete , it was the first translation of the book into a European language and remained the standard well into the sixteenth century. The translation is not viewed by modern scholars as having been faithful, but rather includes some passages with distortions or exaggerations of the original Arabic.The last record we have of Robert's career is that in 1157 he became a canon of Tudela .The city had been conquered by the Christians in 1119.
Red text was written in or rewritten since the previous snapshot. Their copy is revision 358028154.
The opening as it stood in 2015
Robert of Ketton ( Latin : Robertus Ketenensis ; c. 1110 – c. 1160) was an English medieval theologian , astronomer and Arabist . Ketton , where Robert was either born or perhaps first took holy orders, is a village in Rutland , a few miles from Stamford , Lincolnshire . Robert is believed to have been educated at the Cathedral School of Paris . In 1134 he travelled from France to the East for four years with his fellow student and friend Herman of Carinthia (also known as Herman Dalmatin). They visited the Byzantine Empire , the Crusader States in Palestine , and Damascus . Both men were to become famous as translators from the Arabic . By 1141 Robert had moved to Spain where the division of the country between Muslim and Christian rulers made it a natural base for translators. Some sources identify him with Robert of Chester ( ), who was also active in Spain as a translator in the 1140s. Although he received support from the Church—he became Archdeacon of Pamplona in 1143—Robert's preference was for translating scientific rather than theological works. He is known to have studied Euclid and to have translated the work of Al Battani and Avicenna , and it seems that he would not have made the translation for which he is famous, that of the Qur'an , without the encouragement of the French Abbot Peter the Venerable , who wished to have access to Islamic texts. In 1142 Robert and other scholars met with Peter the Venerable, who was visiting Spain, and Robert set to work translating the Qur'an into Latin . The translation was done by 1143; entitled Lex Mahumet pseudoprophete , it was the first translation of the book into a European language and remained the standard well into the sixteenth century. The translation is not viewed by modern scholars as having been faithful, but rather includes some passages with distortions or exaggerations of the original Arabic. The last record we have of Robert's career is that in 1157 he became a canon of Tudela . The city had been conquered by the Christians in 1119. (This is, in effect, a double biography covering both Robert of Ketton and Robert of Chester.)
Red text was written in or rewritten since the previous snapshot. Their copy is revision 660911843.
The opening as it stood in 2020 16 passages from the previous snapshot no longer appear
Robert of Ketton , known in Latin as Rodbertus Ketenensis ( fl. 1141–1157), was an English astronomer, translator, priest and diplomat active in Spain.He translated several works of Arabic into Latin , including the first translation of the Quran into any Western language.Between 1144 and 1157 he held an archdeaconry in the diocese of Pamplona .In the past he has been confounded with Robert of Chester (Latin Robertus Castrensis ), another English translator active in Spain in the mid-twelfth century; and at least one modern scholar believes they are the same person.Robert's byname, Ketenensis or on one occasion de Ketene , is usually taken to refer to Ketton , a village in Rutland , a few miles from Stamford , Lincolnshire .It was probably Robert's birthplace.This nickname was never used in official documents associated with Pamplona, where he was always simply "Master Robert" ( magister Rodbertus ), indicating that he had a master of arts degree.The identification of the translator known as Robert of Ketton and the archdeacon known as Master Robert is provided by a letter of Peter the Venerable , abbot of Cluny .In the spring or summer of 1144, when Peter sent some of Robert's translations to Bernard of Clairvaux .In the accompanying letter he named the translator as "Robert of Ketton from England, who is now archdeacon of the church of Pamplona" ( Roberto Ketenensi de Anglia, qui nunc Pampilonensis ecclesiae archidiaconus est ).
Red text was written in or rewritten since the previous snapshot. Their copy is revision 949833302.
The opening as it stood on October 6, 2023
12C English astronomer, translator, priest and diplomat Robert of Ketton , known in Latin as Rodbertus Ketenensis ( fl. 1141–1157), was an English astronomer, translator, priest and diplomat active in Spain. He translated several works of Arabic into Latin , including the first translation of the Quran into any Western language. Between 1144 and 1157 he held an archdeaconry in the diocese of Pamplona . In the past he has been confounded with Robert of Chester (Latin Robertus Castrensis ), another English translator active in Spain in the mid-twelfth century; and at least one modern scholar believes they are the same person. Robert's byname, Ketenensis or on one occasion de Ketene , is usually taken to refer to Ketton , a village in Rutland , a few miles from Stamford , Lincolnshire . It was probably Robert's birthplace. This nickname was never used in official documents associated with Pamplona, where he was always simply "Master Robert" ( magister Rodbertus ), indicating that he had a master of arts degree. The identification of the translator known as Robert of Ketton and the archdeacon known as Master Robert is provided by a letter of Peter the Venerable , abbot of Cluny . In the spring or summer of 1144, when Peter sent some of Robert's translations to Bernard of Clairvaux . In the accompanying letter he named the translator as "Robert of Ketton from England, who is now archdeacon of the church of Pamplona" ( Roberto Ketenensi de Anglia, qui nunc Pampilonensis ecclesiae archidiaconus est ).
Red text was written in or rewritten since the previous snapshot. Their copy is revision 1173717931. This is our newest snapshot; the live article may have moved again since.
Today
Wikipedia's first sentence called it “medieval theologian”. Today it says “english astronomer”. The one-line description Wikipedia serves to search engines and AI systems read “12C English astronomer, translator, priest and diplomat”. It now reads “12th-century English translator and priest”. Read the current article and compare.
2005
2010
2015
2020
Oct '23
2025
Counts in the opening at each snapshot. Green: the word gained ground. Red: it was cut. Grey: no change.
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
medieval theologian
Now
english astronomer
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.