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February 28 incident (二二八事件)
The February 28 incident (二二八事件), also called the 228 Incident, was a 1947 Taiwanese uprising against Republic of China rule that began with a tobacco-monopoly clash in Taipei and was crushed by military suppression, martial law, and village-cleansing purges.
February 29
February 29 (leap day) is the intercalary date added to February in Gregorian leap years, giving 366 days. Key facts: leap-year rules (divisible by 4, century exceptions), Julius Caesar's Julian origin, Pope Gregory XIII's 1582 reform, leaplings, and proposal customs.
February 3
February 3, the 34th day of the Gregorian year, marks the Day the Music Died (1959 Buddy Holly crash), Luna 9's first Moon soft landing (1966), the 15th and 16th Amendment ratifications, Martyrs' Day in São Tomé and Príncipe, Heroes' Day in Mozambique, and Setsubun in Japan.
February 4
February 4, the 35th day of the Gregorian year, marks Washington's unanimous 1789 election, the 1861 founding of the Confederacy, the 1945 Yalta Conference opening, Sri Lanka's 1948 independence, Facebook's 2004 launch, and annual World Cancer Day.
February 5
February 5, the 36th day of the Gregorian year, is a calendar date marked by the end of the Punic Wars (146 BCE), the founding of United Artists (1919), Mexico's 1917 constitution, Apollo 14's moonwalk, and Trump's first impeachment acquittal.
February 6
February 6, the 37th day of the Gregorian year, is Waitangi Day and Saami National Day. It marks the 1778 Franco-American alliance, Elizabeth II's 1952 accession, and the 2023 Turkey–Syria earthquake.
February 7
February 7, the 38th day of the Gregorian year, marks the Beatles' 1964 US arrival, the first untethered spacewalk (1984), the Maastricht Treaty (1992), Australia's Black Saturday bushfires (2009), and births of Dickens, Wilder, and Puyi.
February 8
February 8 is the 39th day of the Gregorian year (326 days remain). Key events include Mary, Queen of Scots' 1587 execution, the 1904 Port Arthur attack, and NASDAQ's 1971 first trading day.
February 9
February 9 is the 40th day of the Gregorian year, also known as 9 February. Known for the 1825 House election of John Quincy Adams, the Beatles' 1964 Ed Sullivan debut, the IRA's 1996 Canary Wharf bombing, and St Maron's Day in Lebanon.
February Days and the Petrograd garrison mutiny
The February Days and the Petrograd garrison mutiny (Февральские дни в Петрограде) were the February–March 1917 uprising in Petrograd, where a garrison mutiny overthrew the monarchy.
February Manifesto
The February Manifesto (Февральский манифест) was an imperial decree of Nicholas II, issued in 1899, that subordinated legislation for the Grand Duchy of Finland to the Russian Empire.
February Patent
The February Patent (Februarpatent) was a set of fundamental laws promulgated by Emperor Franz Joseph I on 26 February 1861, creating a two-chamber Reichsrat and elected provincial diets in the Austrian Empire.
February Revolution (Февральская революция)
The February Revolution (Февральская революция) was a spontaneous 1917 uprising in Petrograd whose army mutiny forced Tsar Nicholas II to abdicate, ending over 300 years of Romanov rule.
February Uprising
The February Uprising, also called the February Insurrection or February Rebellion, was an anti-Bolshevik revolt in Soviet Armenia that briefly expelled the Bolsheviks from Yerevan in February 1921.
Febuary (band)
Febuary (no first r) is a Las Vegas screamo band formed in 2023 with Rila Ogawa, Abby Walker, Airon Gauuf, and Italy Jones; debut album February (2024), EP Run Like a Girl (2025), and Coachella 2026 booking distinguish it from other February-named acts.
Febuxostat
Febuxostat (Adenuric, Uloric) is a nonpurine xanthine oxidase inhibitor for hyperuricemia in gout, FDA-approved 2009; CARES showed higher cardiovascular death versus allopurinol, FAST did not, prompting a US boxed warning.
Fecal coliform
Fecal coliform bacteria are a subgroup of coliforms that ferment lactose at 44.5 °C and were long used as water quality indicators, including the EPA's 1976 recreational criteria.
Fecal glucocorticoid metabolites
Fecal glucocorticoid metabolites (FGMs, also fGCM) are breakdown products of the stress hormones cortisol and corticosterone excreted in droppings, widely used to measure stress in wildlife without capture.
Fecal immunochemical test
A fecal immunochemical test (FIT) is a stool-based test using antibodies against human hemoglobin to detect hidden blood for colorectal cancer screening, done at home with no preparation.
Fecal impaction
Fecal impaction (fecaloma): a compacted fecal mass at any intestinal level that cannot be evacuated spontaneously, usually from chronic constipation in elderly or neuropsychiatric patients; treated with enemas, manual disimpaction, or polyethylene glycol lavage, and complicated by perforation, obstruction, stercoral ulcer, and urinary retention.
Fecal incontinence
Fecal incontinence, or accidental bowel leakage, is uncontrolled passage of stool, affecting about 7.7 percent of adults. Causes include sphincter damage, childbirth, and neurological disease; treatment is stepwise from diet and pelvic floor training to nerve stimulation and surgery.
Fecal microbiota transplant
Fecal microbiota transplant (FMT), also called fecal bacteriotherapy or intestinal microbiota transfer, transfers screened donor stool to a recipient, mainly to prevent recurrent C. difficile infection; delivered by colonoscopy, enema, tube, or capsules, with FDA-approved products Rebyota and Vowst.
Fecal microbiota transplantation
Fecal microbiota transplantation (FMT) is the transfer of processed stool from a screened healthy donor into a patient's gut, curing 80–90% of recurrent C. difficile infections.
Fecal occult blood test
A fecal occult blood test (FOBT) detects hidden blood in stool, screening for colorectal cancer; the guaiac-based form has largely been replaced by the more sensitive fecal immunochemical test.
Fecal pellet
In oceanography, a fecal pellet is a compacted package of organic waste egested by zooplankton or fish, and a major vehicle of the biological carbon pump.
Fecal–oral route
Fecal–oral route: indirect disease transmission in which pathogens exit in feces and enter a new host by mouth via food, water, fingers, flies, fields, or fomites; drives cholera, hepatitis A, norovirus.
Feces
Feces (stool, faeces): digestive waste of animals, composed of undigested food, bacteria, cells, salts, and water; serves as food (coprophagy), fertilizer, diagnostic sample, and archaeological record.
Fecr-i Âtî
Fecr-i Âtî (Ottoman Turkish: فجر آتي, "the dawn of the future") was a short-lived Turkish literary society founded in Istanbul in 1909 and dissolved in 1912.
FeCrAl cladding
FeCrAl cladding is nuclear fuel rod cladding made of iron-chromium-aluminum alloy, developed as an accident-tolerant fuel material because it resists high-temperature steam oxidation far better than zirconium alloys.
Fecundity
Fecundity is the potential reproductive capacity of an organism or population, the number of eggs or offspring per reproductive cycle; distinct from fertility (actual births) and fecundability (per-cycle conception probability), central to demography, life-history theory, and fisheries stock assessment.