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Troxler's fading
Troxler's fading, or the Troxler effect, is the disappearance of stationary peripheral visual stimuli during steady central fixation, first described by Ignaz Paul Vital Troxler in 1804. It results from neural adaptation and is interrupted by microsaccades.
True Crime Community
True Crime Community (TCC), #tcc, an online subculture glorifying mass shooters and serial killers, largely of minors, distinct from mainstream true crime fandom; ADL tracked 28 TCC-linked attacks and 66 perpetrators since 2024, with Columbiner roots.
True self and false self
True self and false self: paired concepts introduced by Donald Winnicott in his 1960 paper 'Ego Distortion in Terms of True and False Self'; the false self complies to protect the spontaneous true self, differing from Kohut's self psychology and folk notions of authenticity.
Trump administration family separation policy
The Trump administration family separation policy (zero tolerance) separated migrant children from parents at the U.S.–Mexico border, formalized April–June 2018, ended by court order and Executive Order 13841, with over 11,800 people later covered by the Ms. L settlement.
Trump travel ban
Trump travel ban: series of 2017-2026 executive orders and proclamations restricting entry of nationals of designated countries under INA 212(f); upheld 5-4 in Trump v. Hawaii (2018); expanded to 39 countries by 2025-2026 proclamations.
Truphena Muthoni
Truphena Muthoni (born 2003) is a Kenyan environmentalist, founder of Hug the Earth, and Guinness World Record holder for the longest tree-hugging marathon: 72 hours in Nyeri, December 8-11, 2025, beating her own 48-hour record.
Trust (social science)
Trust (social science), also called social or interpersonal trust, is the willingness to accept vulnerability based on positive expectations of others. Covers generalized versus particularized trust, measurement scales, and global trust trends.
Trust game
The trust game, originally called the investment game, is a two-player experiment introduced in 1995 in which the amount sent measures trust and the proportion returned measures trustworthiness.
Tsimshian
The Tsimshian (Ts'msyen) are a Northwest Coast Indigenous nation of northwestern British Columbia whose territory spans the lower Skeena River and, since 1887, part of southern Alaska.
Tswana people
Tswana (baTswana), a Sotho-Tswana people of South Africa and Botswana speaking Setswana, about 4 million strong, of mixed Khoisan and Bantu farming descent, with stone-walled towns and chiefdoms before 19th-century upheaval and colonial rule.
Tuareg people
Tuareg (Imajeghen): Saharan Berber-speaking nomadic pastoral confederations of Algeria, Libya, Niger, Mali, and Burkina Faso, speaking Tamasheq, writing Tifinagh, with matrilineal descent and a stratified society of imajeghan, imghad, and iklan.
Tubal Uriah Butler
Tubal Uriah Butler, known as Buzz Butler, was a Grenadian-born oilfield worker and trade union leader in Trinidad whose arrest attempt on June 19, 1937 triggered the Butler Oilfield Riots.
Tucking
Tucking conceals the penis and testes under clothing by guiding the testes into the inguinal canals and securing the position with gaffs, underwear, or medical tape; used for gender affirmation and performance, with risks including skin irritation, UTIs, and reduced sperm quality.
Tuckman's stages of group development
Tuckman's stages of group development, or the forming-storming-norming-performing model, is Bruce W. Tuckman's 1965 sequential model, extended with adjourning in 1977 by Tuckman and Jensen, widely used but with limited empirical support.
Tuesday Society
The Tuesday Society (Hwayohoe, 화요회) was a socialist organization formed in Seoul in 1924 under Japanese rule, and a founding faction of the Korean Communist Party.
Tulu people
The Tulu people, or Tuluvas, are speakers of Tulu, a Dravidian language of southwestern India whose homeland, Tulu Nadu, spans coastal Karnataka and northern Kerala.
Tungusic peoples
Tungusic peoples are the ethnolinguistic groups speaking Tungusic languages across Siberia, Manchuria, and Xinjiang, including Evenks, Evens, Nanai, Oroqen, Xibe, and Manchus; about twenty endangered languages, with Manchu the Qing official language.
Tunku Abu Bakar
Tunku Abu Bakar (Tunku Abu Bakar Mahmood Iskandar Ibrahim Ibni Sultan Ibrahim), Tunku Putera Johor, is a son of Sultan Ibrahim of Johor, born 2001, and a GT racing driver, 2023 GT3 Asia runner-up.
Tunku Tun Aminah Maimunah Iskandariah
Tunku Tun Aminah Maimunah Iskandariah, born 1986, is a princess of the Malaysian state of Johor and the only daughter of Sultan Ibrahim, who became Malaysia's king in 2024.
Turkic peoples
Turkic peoples are Eurasian peoples speaking Turkic languages, named after the Türk (Tujue) who founded the 552 CE Türk Qaghanate. Branches include Oghuz, Karluk, and Kipchak; over 170 million speakers today.
Turkification
Turkification: assimilation policies making populations Turkish in language and identity, from late Ottoman CUP rule through the Kemalist Republic, targeting Muslim minorities especially Kurds, with Lausanne-recognized non-Muslim exceptions.
Turkish Cypriots
Turkish Cypriots (Kıbrıs Türkleri), the Turkish-speaking Muslim community of Cyprus descended from Ottoman settlers after 1571, about 18% of the island's people, now living mostly in the Turkish-recognized north after the 1963 collapse and 1974 division.
Turkmens
Turkmens, also known as Turkmen people, are a Turkic ethnic group speaking the Turkmen language, with the largest population in Turkmenistan and communities in Iran, Iraq, and Afghanistan.
Turks in Germany
Turks in Germany: the roughly three-million-strong community of Turkish origin, Germany's largest migrant group, rooted in the 1961 Anwerbeabkommen guest worker recruitment agreement and the 1973 recruitment stop, now in its fourth generation.
Tuscarora migration
The Tuscarora migration was the movement of the Tuscarora people from eastern North Carolina northward between 1713 and 1803 to join the Iroquois Confederacy as its sixth nation.
Tuscarora people
Tuscarora (Skarù∙ręʔ, Hemp People), an Iroquoian people of North Carolina defeated in the 1711-1713 Tuscarora War, adopted as the sixth nation of the Haudenosaunee around 1720-1723, now centered in Niagara County, New York.
Tushar Gandhi (तुषार आरुण गांधी)
Tushar Arun Gandhi (तुषार आरुण गांधी), born 1960, is an Indian author and activist, great-grandson of Mahatma Gandhi, founder-president of the Mahatma Gandhi Foundation, author of Let's Kill Gandhi, and a critic of the BJP-RSS.
Tutsi
Tutsi: one of Rwanda and Burundi's three social categories with Hutu and Twa; precolonially fluid and status-based, fixed as racial categories by Belgian 1933–34 identity cards, targeted in the 1994 genocide.
Tuvans
Tuvans (Tyva kizhi), a Turkic-speaking people of the Tuva Republic in Russia with diasporas in Mongolia and China, known for xöömei throat-singing, Tibetan Buddhism with shamanism, and a history of Manchu rule, the 1914 Russian protectorate, and the 1921–1944 Tuvan People's Republic.
Twa
Twa, also known as Batwa, is a collective term for several Central African forest peoples, historically hunter-gatherers of short stature in the DRC, Uganda, Rwanda, and Burundi.