In 2005 Wikipedia's first sentence called it “mobile air defense system in development by rafael advanced defense systems designed to intercept short-range r”. Today it says “israeli mobile all-weather air defense system”.
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 2025
Iron Dome from the Israeli News Company The EL/M-2084 active electronically scanned array scaled down derivative radar of the Iron Dome US Ambassador Dan Shapiro visits the Battle Management & Control (BMC) unit of the Iron Dome in 2011. Iron Dome ( Hebrew : כִּפַּת בַּרְזֶל , romanized : Kippat Barzel ) is an Israeli mobile all-weather air defense system , developed by Rafael Advanced Defense Systems and Israel Aerospace Industries . The system is designed to intercept and destroy short-range rockets and artillery shells fired from distances of 4 to 70 kilometres (2–43 mi) away and whose trajectory would take them to an Israeli populated area. From 2011 to 2021, the United States contributed a total of US$1.6 billion to the Iron Dome defense system, with another US$1 billion approved by the US Congress in 2022. Iron Dome was declared operational and initially deployed on 27 March 2011 near Beersheba . On 7 April 2011, the system successfully intercepted a rocket launched from Gaza for the first time. On 10 March 2012, The Jerusalem Post reported that the system shot down 90% of rockets launched from Gaza that would have landed in populated areas. In late 2012, Israel said that it hoped to increase the range of Iron Dome's interceptions, from a maximum of 70 to 250 kilometres (43–155 mi) and make it more versatile so that it could intercept rockets coming from two directions simultaneously. In November 2012, official statements indicated that it had intercepted over 400 rockets. By late October 2014, the Iron Dome systems had intercepted over 1,200 rockets. In addition to their land-based deployment, it was reported in 2017 that Iron Dome batteries would in future be deployed at sea on Sa'ar 6-class corvettes , to protect offshore gas platforms in conjunction with Israel's Barak 8 missile system. Al Jazeera English . 27 March 2011 . "Some numbers from the last 4 days: 544 rockets fired from #Gaza hit #Israel + 302 Iron Dome interceptions=846 rockets fired at us" ( Tweet ) .
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 1297115057.
The opening as it stood in 2010
Iron Dome ( ) is a mobile air defense system in development by Rafael Advanced Defense Systems designed to intercept short-range rockets and artillery shells . The system is being created as a defensive countermeasure to the rocket threat against Israel's civilian population on its northern and southern border. The system is expected to be operational by May 2010.
Red text was written in or rewritten since the previous snapshot. Their copy is revision 365313055.
The opening as it stood in 2015 3 passages from the previous snapshot no longer appear
"Iron Dome" launcher deployed next to Sderot , Israel (June 2011) The EL/M-2084 active electronically scanned array scaled down derivative radar of the Iron Dome US Ambassador Dan Shapiro visits the Battle Management & Control (BMC) unit of the Iron Dome Iron Dome ( , kippat barzel ) is a mobile all-weather air defense system developed by Rafael Advanced Defense Systems and Israel Aircraft Industries .The system is designed to intercept and destroy short-range rockets and artillery shells fired from distances of 4 kilometres (2.5 mi) to 70 kilometres (43 mi) away and whose trajectory would take them to a populated area.Israel hopes to increase the range of Iron Dome's interceptions, from the current maximum of 70 kilometres (43 mi) to 250 kilometres (160 mi) and make it more versatile so that it could intercept rockets coming from two directions simultaneously.Iron Dome was declared operational and initially deployed on 27 March 2011 near Beersheba .On 7 April 2011, the system successfully intercepted a Grad rocket launched from Gaza for the first time.On 10 March 2012, The Jerusalem Post reported that the system shot down 90% of rockets launched from Gaza that would have landed in populated areas.By November 2012, official statements indicated that it had intercepted 400+ rockets.By late October 2014, the Iron Dome systems had intercepted over 1,200 rockets.Iron Dome is part of a future multi-tiered missile defense system that Israel is developing, which will also include Arrow 2 , Arrow 3 , Iron Beam and David's Sling from as early as 2018."The secret of the wonder weapon that Israel will show off to Obama" , Time , 19 March 2013 ."Israel's Iron Dome changes the face of battle" , Ynet news , Associated Press, 12 July 2014 .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 669315957.
The opening as it stood in 2020 1 passage from the previous snapshot no longer appear
Israeli air defense system to protect against short-range rockets and artillery shells fired from distances of 4 to 70 km Short video about Iron Dome from the Israeli News Company Iron Dome launcher deployed next to Sderot , Israel (June 2011) The EL/M-2084 active electronically scanned array scaled down derivative radar of the Iron Dome US Ambassador Dan Shapiro visits the Battle Management & Control (BMC) unit of the Iron Dome Iron Dome ( , kippat barzel ) is a mobile all-weather air defense system developed by Rafael Advanced Defense Systems and Israel Aerospace Industries . The system is designed to intercept and destroy short-range rockets and artillery shells fired from distances of 4 kilometres (2.5 mi) to 70 kilometres (43 mi) away and whose trajectory would take them to an Israeli populated area. Israel hopes to increase the range of Iron Dome's interceptions, from the current maximum of 70 kilometres (43 mi) to 250 kilometres (160 mi) and make it more versatile so that it could intercept rockets coming from two directions simultaneously. Iron Dome was declared operational and initially deployed on 27 March 2011 near Beersheba . On 7 April 2011, the system successfully intercepted a BM-21 Grad launched from Gaza for the first time. On 10 March 2012, The Jerusalem Post reported that the system shot down 90% of rockets launched from Gaza that would have landed in populated areas. By November 2012, official statements indicated that it had intercepted over 400 rockets. By late October 2014, the Iron Dome systems had intercepted over 1,200 rockets. In addition to their land-based deployment, Iron Dome batteries will in the future be deployed at sea, where they will protect off-shore gas platforms in conjunction with Israel's Barak 8 missile system.Iron Dome is part of a future multi-tiered missile defense system that Israel is developing, which includes Arrow 2 , Arrow 3 , Iron Beam , Barak 8 and David's Sling . "The secret of the wonder weapon that Israel will show off to Obama" , Time , 19 March 2013 .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 963893583.
The opening as it stood on October 6, 2023 2 passages from the previous snapshot no longer appear
Israeli air defense system Short video about Iron Dome from the Israeli News Company The EL/M-2084 active electronically scanned array scaled down derivative radar of the Iron Dome US Ambassador Dan Shapiro visits the Battle Management & Control (BMC) unit of the Iron Dome Iron Dome ( ) is an Israeli mobile all-weather air defense system developed by Rafael Advanced Defense Systems and Israel Aerospace Industries . The system is designed to intercept and destroy short-range rockets and artillery shells fired from distances of 4 kilometres (2.5 mi) to 70 kilometres (43 mi) away and whose trajectory would take them to an Israeli populated area. From 2011 to 2021, the United States contributed a total of US$1.6 billion to the Iron Dome defense system, with another US$1 billion approved by the US Congress in 2022. Iron Dome was declared operational and initially deployed on 27 March 2011 near Beersheba . On 7 April 2011, the system successfully intercepted a rocket launched from Gaza for the first time. On 10 March 2012, The Jerusalem Post reported that the system shot down 90% of rockets launched from Gaza that would have landed in populated areas. In late 2012 Israel said that it hoped to increase the range of Iron Dome's interceptions, from a maximum of 70 kilometres (43 mi) to 250 kilometres (160 mi) and make it more versatile so that it could intercept rockets coming from two directions simultaneously. In November 2012, official statements indicated that it had intercepted over 400 rockets. By late October 2014, the Iron Dome systems had intercepted over 1,200 rockets. In addition to their land-based deployment, it was reported in 2017 that Iron Dome batteries would in future be deployed at sea on Sa'ar 6-class corvettes , to protect off-shore gas platforms in conjunction with Israel's Barak 8 missile system.
Red text was written in or rewritten since the previous snapshot. Their copy is revision 1176575233.
Today
In 2005 Wikipedia's first sentence called it “mobile air defense system in development by rafael advanced defense systems designed to intercept short-range r”. Today it says “israeli mobile all-weather air defense system”. Read the current article and compare.
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 2010, and today's defining sentence is their current revision.
Then
mobile air defense system in development by rafael advanced defense systems designed to intercept short-range r
Now
israeli mobile all-weather air defense system
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.