Case file
Ali Hassan Salameh
Ali Hassan Salameh was the Black September operations chief behind the 1972 Munich massacre of Israeli Olympic athletes. In 2020 the opening described him as chief of operations for 'Black September, the organization responsible for the 1972 Munich massacre and other terror attacks.' Today the opening calls him a 'Palestinian militant' and 'chief of operations for Black September and founder of Force 17,' with no mention of Munich massacre responsibility or terror attacks, though terror survives 4 times elsewhere in the article. A reader today learns he led Black September and founded Force 17, not that Wikipedia once identified Black September as the organization responsible for the Munich massacre and other terror attacks.
Read line by line and written up by hand.
Machine-checked against the full current article on 2026-08-01. “terror” appeared 2 times in this article's opening at its peak. Today the opening has none; the body has 4.
We saved snapshots of this article over twenty years; you are reading the 2020 one. Red dashes: removed from Wikipedia since.
Pale dots: rewritten; the numbered note shows what it says now.
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The opening as it read in 2020
He was also the founder of Force 17 . He was assassinated by Mossad in January 1979 as part of Operation Wrath of God .1
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 962475460.
Today
“terror” appeared 2 times in this article's opening at its peak. Today the opening has none; the body has 4. Read the current article and compare.
| 2005 | 2010 | 2015 | 2020 | Oct '23 | 2025 | |
|---|---|---|---|---|---|---|
| terror | 0 | 0 | 0 | 2 | 0 | 0 |
| militant | 0 | 0 | 0 | 0 | 2 | 2 |
| massacre | 1 | 1 | 1 | 1 | 0 | 0 |
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.