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Third Seminole War

The Third Seminole War, also known as Billy Bowlegs' War, was the last of three conflicts between the United States and the Seminole people of Florida, fought from 1855 to 1858.

Third Servile War

Third Servile War (73–71 BC), also the Gladiator War or War of Spartacus: the last of the Roman Servile Wars, a slave revolt begun by about 70–78 gladiators fleeing Capua under the Thracian Spartacus, crushed by Crassus with eight legions and 6,000 crucifixions.

Third Shot

Third Shot refers to the third nuclear explosion in history, the Fat Man plutonium bomb detonated over Nagasaki, Japan, on 9 August 1945, killing about 35,000.

Third Siege of Missolonghi

The Third Siege of Missolonghi was the year-long 1825 to 1826 Ottoman-Egyptian siege of Missolonghi, Greece, ending with the defenders' breakout known as the Exodus.

Third Silesian War

Third Silesian War (1756–1763), Central European theatre of the Seven Years' War, also called the Prussian War: Prussia under Frederick II fought Austria, Russia, France, and Sweden over Silesia, ending with the Treaty of Hubertusburg and Prussia retaining Silesia.

Third space endoscopy

Third space endoscopy is a minimally invasive endoscopic technique that opens the submucosal layer as a working tunnel to reach lesions, best known for POEM, its myotomy for achalasia.

Third Space Theory

Third Space theory, from Homi K. Bhabha's 1988 essay and The Location of Culture (1994), is a postcolonial concept of ambivalent, hybrid in-between spaces of meaning, widely applied in education, sociolinguistics, and higher education research.

Third Stage

Third Stage is Boston's third studio album, released September 23, 1986 on MCA after an eight-year gap and a CBS lawsuit. Produced by Tom Scholz, it topped the Billboard 200, went 4x platinum, and yielded the number-one hit "Amanda".

Third Statute of Lithuania

The Third Statute of Lithuania (Трэці Статут Вялікага Княства Літоўскага) was the Grand Duchy of Lithuania's legal code, confirmed by Sigismund III Vasa in 1588 and in force until 1840.

Third Sui campaign against Goguryeo

The Third Sui campaign against Goguryeo (隋第三次徵高句麗) was Emperor Yang of Sui's third invasion of Goguryeo, in 614, launched after the Yang Xuangan rebellion and ended by King Go Won's surrender.

Third Sui invasion of Goguryeo

The Third Sui invasion of Goguryeo (第三次隋徵高句麗) was Emperor Yang of Sui's 614 campaign against the Korean kingdom of Goguryeo, ending when King Go Won begged surrender and Sui withdrew.

Third Taiwan Strait Crisis

The Third Taiwan Strait Crisis (July 1995–March 1996) was a PRC-Taiwan-US confrontation triggered by Lee Teng-hui's Cornell University visit, marked by Chinese missile tests near Keelung and Kaohsiung, two US carrier battle group deployments, and Taiwan's first direct presidential election.

Third Temple

The Third Temple (Beit HaMikdash HaShlishi) is the future Jewish temple expected in messianic belief and some Christian prophecy to be built on Jerusalem's Temple Mount.

Third to sixth pharyngeal arches and derivatives

The third to sixth pharyngeal arches are embryonic structures forming the lower hyoid, laryngeal cartilages, and pharyngeal and laryngeal muscles, supplied by CN IX and CN X.

Third Tusk cabinet

Third Tusk cabinet: Poland's government led by Donald Tusk, sworn in 13 December 2023, a KO–Third Way–Left coalition with 27 members, 19 ministries, and an EU rule-of-law agenda to unblock over €76 billion in Cohesion Funds.

Third Ward, Houston

Third Ward, Houston: historic African American neighborhood created after the city's 1836 founding, home of Emancipation Park (1872), Texas Southern University, University of Houston, and Project Row Houses, now facing rapid gentrification.

Third Watch

Third Watch (1999-2005) is an NBC drama created by Edward Allen Bernero and John Wells about New York police officers, firefighters, and paramedics of the fictional 55th precinct on the 3 p.m. to 11 p.m. shift; six seasons, 132 episodes, known for its post-9/11 season.

Third Wave Recovery Systems (TWRx)

Third Wave Recovery Systems (TWRx), also known as Thirdwave RX, is a Las Vegas healthcare company founded in 2021 that administers pharmaceutical rebates for hospitals and long-term care facilities.

Third Way

Third Way: 1990s center-left political ideology associated with Bill Clinton and Tony Blair, theorized by Anthony Giddens as transcending old social democracy and neoliberalism; variants included Germany's neue Mitte and France's gauche plurielle.

Third World

Third World (Tiers Monde): term coined by Alfred Sauvy in L'Observateur, 14 August 1952, for countries aligned with neither Cold War bloc; later meant poor, developing countries; replaced by Global South.

Third World approaches to international law

Third World approaches to international law (TWAIL) is a critical legal movement, formalized at a 1997 Harvard conference, arguing imperialism shaped international law; spans TWAIL I and II generations led by Anghie, Chimni, and Gathii.

Third-generation cephalosporin resistant Klebsiella pneumoniae

Third-generation cephalosporin resistant Klebsiella pneumoniae (3GC-RKP, ICD-11 MG50.52): K. pneumoniae resistant to ceftriaxone, cefotaxime, or ceftazidime, mainly via ESBL or AmpC enzymes; WHO critical priority, prevalence 29.8–78.7% by setting.

Third-harmonic generation

Third-harmonic generation (THG) is a nonlinear optical process in which light at frequency ω is converted to 3ω, such as 1,064 nm light to 355 nm, first demonstrated in 1967.

Third-order intercept point

The third-order intercept point (IP3, also written TOI) is a theoretical power level at which third-order intermodulation distortion equals the fundamental signal, used to rate RF linearity.

Third-party cookies

Third-party cookies, also called cross-site cookies, are cookies set by a domain other than the page being viewed, allowing a party to recognize a browser across unrelated sites for tracking and advertising.

Third-party custody

Third-party custody is a court order giving a child's care to a non-parent, such as a stepparent, who must first clear a threshold showing against the parent.

Third-party evidence for Apollo Moon landings

Third-party evidence for the Apollo Moon landings (1969–1972) includes lunar samples studied worldwide, laser ranging to retroreflectors, and photos of landing sites by India, Japan, and China.

Third-party logistics

Third-party logistics (3PL) is the practice of paying an outside company to run warehousing, transportation, fulfillment, and returns; the global market reached $1.3 trillion in 2025.

Third-party standing in family proceedings

Third-party standing in family proceedings is the right of a non-parent, such as a grandparent or stepparent, to bring a custody or contact application at all.

Third-person (video games)

Third-person perspective in video games: an external camera, usually behind and above the avatar, showing the character on screen. Covers its history from Spacewar! and Starglider's diegetic camera, design tradeoffs versus first person, and survey data on player preferences.