Yehuda Lapidot was an Israeli historian and Irgun veteran. Through October 2023 the opening described his role "in a joint Irgun-Lehi attack on the Arab village of Deir Yassin... what would later become known as the Deir Yassin massacre." Today the opening is a single sentence identifying him as a historian and Irgun veteran; the word survives once elsewhere in the article, not the opening. A reader today does not learn that Lapidot took part in the attack known as the Deir Yassin massacre.
Read line by line and written up by hand.
Machine-checked against the full current article on 2026-08-01. “massacre” appeared 1 times in this article's opening at its peak. Today the opening has none; the body has 1.
We saved snapshots of this article over twenty years; you are reading the 2015 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 2015
Yehuda Lapidot (born August 13, 1928) is an Israeli historian, former professor of biochemistry , and veteran of the Irgun . Yehuda Lapidot was born in Mandatory Palestine in 1928. At age 15, he joined the Irgun guerrilla organization, taking the nom de guerre "Nimrod". He was active in the Irgun's Combat Corps (Hayil Kravi), and was responsible for maintaining weapons arsenals in Ramat Gan and Bnei Brak . During the Jewish insurgency in Palestine , he took part in anti-British operations. In April 1946, he participated in a major operation to sabotage the railway network in southern Palestine, and was severely wounded in the arm. While recuperating from his injury, which prevented him from using a gun, he worked in the Irgun's propaganda department, where he was director of its foreign press section. In 1947, he was transferred to Jerusalem , and served as a commander during the 1947-1948 Civil War in Mandatory Palestine . Initially, his role was to train new recruits. His most notable action during this period was taking part in a joint Irgun- Lehi attack on the Arab village of Deir Yassin , it what would later become known as the Deir Yassin massacre . After Benzion Cohen, the overall Irgun commander of the operation went down, he took charge of the Irgun force and led it through most of the fighting. During the Israeli War of Independence , he served as a company commander, and took part in fighting at Ramat Rachel and in Operation Kedem , during which he led a unit that was part of the final Israeli attempt to capture Jerusalem's Old City during the war. His force successfully broke through the New Gate and into the Old City, where his attack bogged down, while other Israeli forces failed to reach their objectives, and Israeli commanders ordered a general retreat due to an imminent cease-fire about to come into effect. In 1949, he began studying biochemistry at the Hebrew University of Jerusalem , and received a PhD in biochemistry in 1960.1In 1973, he was appointed professor of biochemistry.2In 1980, he was appointed head of Nativ , an Israeli liaison organization maintaining contacts with Jews living in the Eastern Bloc , by Israeli Prime Minister (and former Irgun commander) Menachem Begin . He served in this position until 1985.3
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 637823487.
The opening as it stood in 2010
Yehuda "Nimrod" Lapidot (born August 13, 1928) is an Israeli historian and former professor of biochemistry . Lapidot was a member of the Irgun and an officer in the Israel Defense Forces . In 1980 he was appointed head of Lishkat Hakesher by former Irgun commander and then Israeli Prime Minister Menachem Begin . Lapidot received a Ph.D. in biochemistry from Hebrew University in 1960 and later became a professor.
Red text was written in or rewritten since the previous snapshot. Their copy is revision 361647602.
The opening as it stood in 2020
Israeli historian Yehuda Lapidot (born August 13, 1928) is an Israeli historian, former professor of biochemistry , and veteran of the Irgun . Yehuda Lapidot was born in Mandatory Palestine in 1928. At age 15, he joined the Irgun guerrilla organization, taking the nom de guerre "Nimrod". He was active in the Irgun's Combat Corps (Hayil Kravi), and was responsible for maintaining weapons arsenals in Ramat Gan and Bnei Brak . During the Jewish insurgency in Palestine , he took part in anti-British operations. In April 1946, he participated in a major operation to sabotage the railway network in southern Palestine, and was severely wounded in the arm. While recuperating from his injury, which prevented him from using a gun, he worked in the Irgun's propaganda department, where he was director of its foreign press section. In 1947, he was transferred to Jerusalem , and served as a commander during the 1947-1948 Civil War in Mandatory Palestine . Initially, his role was to train new recruits. His most notable action during this period was taking part in a joint Irgun- Lehi attack on the Arab village of Deir Yassin , it what would later become known as the Deir Yassin massacre . After Benzion Cohen, the overall Irgun commander of the operation, was wounded, he took charge of the Irgun force and led it through most of the fighting. During the Israeli War of Independence , he served as a company commander, and took part in fighting at Ramat Rachel and in Operation Kedem , during which he led a unit that was part of the final Israeli attempt to capture Jerusalem's Old City during the war. His force successfully broke through the New Gate and into the Old City, where his attack bogged down, while other Israeli forces failed to reach their objectives, and Israeli commanders ordered a general retreat due to an imminent cease-fire about to come into effect. He also led the establishment of the agricultural training farm at Shuni Fortress. In 1949, he began studying biochemistry at the Hebrew University of Jerusalem , and received a PhD in biochemistry in 1960. He worked on the biosynthesis of proteins.In 1973, he was appointed a professor of biochemistry at the Hebrew University. In 1980, he was appointed head of Nativ , an Israeli liaison organization maintaining contacts with Jews living in the Eastern Bloc , by Israeli Prime Minister (and former Irgun commander) Menachem Begin . He served in this position until 1985. In 1988, he retired from the Hebrew University and began researching the history of the British Palestine Mandate era, especially the history of the Irgun, and wrote several books on this field.
Red text was written in or rewritten since the previous snapshot. Their copy is revision 901065134.
The opening as it stood on October 6, 2023
Israeli historian Yehuda Lapidot (born August 13, 1928) is an Israeli historian, former professor of biochemistry , and veteran of the Zionist militia Irgun . Yehuda Lapidot was born in Mandatory Palestine in 1928. At age 15, he joined Irgun , taking the nom de guerre "Nimrod". He was active in the Irgun's Combat Corps (Hayil Kravi), and was responsible for maintaining weapons arsenals in Ramat Gan and Bnei Brak . During the Jewish insurgency in Palestine , he took part in anti-British operations. In April 1946, he participated in a major operation to sabotage the railway network in southern Palestine, and was severely wounded in the arm. While recuperating from his injury, which prevented him from using a gun, he worked in the Irgun's propaganda department, where he was director of its foreign press section. In 1947, he was transferred to Jerusalem , and served as a commander during the 1947-1948 Civil War in Mandatory Palestine . Initially, his role was to train new recruits. His most notable action during this period was taking part in a joint Irgun- Lehi attack on the Arab village of Deir Yassin , it what would later become known as the Deir Yassin massacre . After Benzion Cohen, the overall Irgun commander of the operation, was wounded, he took charge of the Irgun force and led it through most of the fighting. During the 1948 Arab-Israeli War , he served as a company commander, and took part in fighting at Ramat Rachel and in Operation Kedem , during which he led a unit that was part of the final Israeli attempt to capture Jerusalem's Old City during the war. His force successfully broke through the New Gate and into the Old City, where his attack bogged down, while other Israeli forces failed to reach their objectives, and Israeli commanders ordered a general retreat due to an imminent cease-fire about to come into effect. He also led the establishment of the agricultural training farm at Shuni Fortress. In 1949, he began studying biochemistry at the Hebrew University of Jerusalem , and received a PhD in biochemistry in 1960. He worked on the biosynthesis of proteins. In 1973, he was appointed a professor of biochemistry at the Hebrew University. In 1980, he was appointed head of Nativ , an Israeli liaison organization maintaining contacts with Jews living in the Eastern Bloc , by Israeli Prime Minister (and former Irgun commander) Menachem Begin . He served in this position until 1985. In 1988, he retired from the Hebrew University and began researching the history of the British Palestine Mandate era, especially the history of the Irgun, and wrote several books on this field.
Red text was written in or rewritten since the previous snapshot. Their copy is revision 1138233238.
The opening as it stood in 2025 19 passages from the previous snapshot no longer appear
Israeli historian Yehuda Lapidot ( Hebrew : יהודה לפידות ; born August 13, 1928) is an Israeli historian, former professor of biochemistry , and veteran of the Zionist militia Irgun .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 1274012734. This is our newest snapshot; the live article may have moved again since.
Today
“massacre” appeared 1 times in this article's opening at its peak. Today the opening has none; the body has 1. Read the current article and compare.
2010
2015
2020
Oct '23
2025
massacre
0
1
1
1
0
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 between 2010 and 2025.
Then
israeli historian and former professor of biochemistry
Now
israeli historian
Where the word went
It left the opening. It did not leave the article. Wikipedia moved it down the page, where a reader arriving from a search result will not reach it.
“massacre” now appears 1× under Irgun years, 17% of the way down the article
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.