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Backlash (2001)
Backlash (2001), WWF pay-per-view, April 29, 2001, Allstate Arena, Rosemont, Illinois; third Backlash event; main event saw Stone Cold Steve Austin and Triple H beat Undertaker and Kane for the tag titles with three championships on the line.
Backlash (2002)
Backlash (2002) was the WWF pay-per-view of April 21, 2002 at Kemper Arena, Kansas City, where Hollywood Hulk Hogan beat Triple H for the Undisputed WWF Championship; the fourth Backlash and the last under the WWF name.
Backlash (2003)
Backlash (2003), WWE pay-per-view, April 27, 2003, Worcester Centrum; fifth Backlash and first under WWE name; Goldberg's WWE in-ring debut win over The Rock; Lesnar retained the WWE title against Cena; 345,000 buys.
Backlash (2004)
Backlash (2004), WWE Raw-brand pay-per-view, April 18, 2004, Rexall Place, Edmonton; Chris Benoit retained the World Heavyweight Championship against Triple H and Shawn Michaels via Sharpshooter submission; attendance 13,000.
Backlash (2009)
Backlash (2009) was the 11th professional wrestling pay-per show held on April 26, 2009, in Providence, Rhode Island, and featured champions Randy Orton, Edge, and Christian.
Backlash (2016)
Backlash (2016): WWE pay-per-view, September 11, 2016, Richmond Coliseum, Virginia; first SmackDown LIVE brand-exclusive PPV of the New Era; AJ Styles won the WWE World Championship from Dean Ambrose, Becky Lynch and Slater & Rhyno became inaugural champions.
Backlash (2017)
WWE Backlash 2017, May 21 at Allstate Arena, Rosemont, Illinois; SmackDown-exclusive PPV where Jinder Mahal upset Randy Orton for his first WWE Championship, Nakamura debuted, and Owens retained the US title against Styles by count-out.
Backlash (2018)
Backlash (2018), WWE pay-per-view on May 6, 2018 at Prudential Center, Newark; first co-branded PPV of 2018. Reigns beat Samoa Joe; Styles vs Nakamura No DQ ended No Contest; all five titles retained.
Backlash (2020)
Backlash (2020) was a WWE pay-per-view and WWE Network event held June 14, 2020, at the WWE Performance Center in Orlando, Florida. Randy Orton beat Edge in the billed 'Greatest Wrestling Match Ever'; McIntyre, Strowman, Asuka, Crews, and Bayley & Banks retained titles.
Backlash (2023)
Backlash (2023) was a WWE professional wrestling premium live event held in San Juan, Puerto Rico on May 6, 2023, hosted by Bad Bunny, with Cody Rhodes defeating Brock Lesnar in the main event.
Backlash (2024)
WWE Backlash France (2024), held May 4 at the LDLC Arena in Lyon-Decines, was WWE's first premium live event in France, headlined by Cody Rhodes retaining the Undisputed WWE Championship against AJ Styles before a famously loud crowd.
Backlash (2025)
Backlash (2025), WWE's 20th Backlash premium live event, held May 10, 2025 at the Enterprise Center in St. Louis; John Cena retained the Undisputed WWE Championship against Randy Orton, and all four champions retained.
Backlash (2026)
Backlash (2026), WWE premium live event, May 9, 2026, Tampa; Roman Reigns beat Jacob Fatu for the World Heavyweight title; John Cena announced the John Cena Classic; IYO SKY beat Asuka.
Backlash (engineering)
Backlash, also called lash or play, is the clearance between mating mechanical components like gear teeth or a screw and nut, seen when movement reverses.
Backlash compensation
Backlash compensation is the set of mechanical and control techniques that remove or offset the lost motion occurring when a gear pair, lead screw, or transmission reverses direction.
Backlash: The Undeclared War Against American Women
Backlash: The Undeclared War Against American Women is Susan Faludi's 1991 Crown bestseller arguing the 1980s saw a conservative media and political reaction against feminism, sparked by her debunking of the Harvard-Yale marriage study.
Backlight
A backlight, or backlighting, is the light source behind or beside an LCD's liquid-crystal layer, supplied by mercury CCFLs until LEDs replaced them around 2014.
Backlink
A backlink, also called an inbound link, is a hyperlink on one website pointing to a page on a different website, treated as an endorsement.
Backlot
Backlot: the outdoor area of a film studio lot with semi-permanent exterior sets for outdoor filming; emerged in Hollywood 1909-1915; Fox and MGM backlots were sold, Universal's survives.
Backlund (lunar crater)
Backlund is a 75.46-km-wide IAU-approved impact crater on the Moon at 16.22°S, 103.35°E, named for Pulkovo Observatory astronomer Johan Oskar Backlund; satellite craters Backlund P and Backlund R, Nectarian age.
Backmasking
Backmasking, also called backward masking, is the deliberate embedding of reversed audio in a recording, hidden during normal playback. The Beatles pioneered it on "Rain" in 1966.
Backo Podunavlje Biosphere Reserve
Bačko Podunavlje Biosphere Reserve, a UNESCO MAB site in north-western Serbia designated in 2017, covers 176,635 ha of Danube floodplain, centers on Gornje Podunavlje, and joined the Mura-Drava-Danube Transboundary Biosphere Reserve in 2021.
Backpack
A backpack, also called a rucksack or book bag, is a bag carried on the back by two shoulder straps, used by hikers, students, and soldiers.
Backpacker murders
The backpacker murders: seven young travellers (three German, two British, two Australian) killed 1989–1992 in Belanglo State Forest, NSW; Ivan Milat convicted 1996, seven life sentences, died 2019.
Backpacking (hiking)
Backpacking (hiking): wilderness backpacking, hiking with a backpack carrying shelter, sleeping gear, food, and water treatment for overnight trips; distinct from travel backpacking; studied for health benefits and morbidity on trails like the John Muir Trail.
Backpacking (travel)
Backpacking (travel): budget independent tourism with a backpack, hostels, and long flexible itineraries; roots in the German youth hostel movement (1907–1933), mainstreamed via the gap year, distinct from wilderness backpacking.
Backpage
Backpage.com was an American classified advertising website launched in 2004 as a Craigslist rival. It became the internet's leading prostitution ad forum until seized by federal authorities in 2018.
Backplane
A backplane is a circuit board or wiring structure with a shared bus and connectors into which a computer's separate circuit boards plug to communicate and receive power.
Backpressure
Backpressure is the mechanism by which a slow data consumer signals its producer to slow down, buffer, or drop items, used in reactive programming, stream processing, and networking.
Backpropagation
Backpropagation, also known as backprop, is the standard algorithm for training neural networks, computing gradients of a loss function with respect to every weight using the chain rule.