336 History claim verifications avg. score 6.8/10 223 rated (mostly) true 96 rated (mostly) false
“The Ukrainian Insurgent Army (UPA) murdered approximately 100,000 Polish civilians during World War II.”
The historical record broadly supports a death toll near 100,000 Polish civilians in the 1943–45 anti-Polish campaign led principally by the UPA. The figure is an estimate covering Volhynia, Eastern Galicia, and neighboring areas. Some killings involved OUN-B members, local auxiliaries, and other associated formations, so assigning every death exclusively to the UPA is too precise.
“During the American Civil War, political figures and residents of California, Oregon, and Washington Territory considered establishing an independent Pacific Republic separate from the United States.”
Historical scholarship confirms that officials, political activists, newspapers, and residents in California, Oregon, and Washington Territory discussed separating from the United States to form a Pacific republic. Such proposals appeared around the 1860–1861 secession crisis and continued into the Civil War period. The idea was considered but never achieved broad enough support to be implemented.
“The first commercially produced bottles of Coca-Cola contained cocaine.”
Historical and chronological evidence supports the statement: commercial bottling began in 1894, while cocaine was removed from Coca-Cola only after 1900. Although the exact concentration and removal date remain disputed, those uncertainties do not materially affect whether the earliest commercially bottled product contained cocaine.
“Humans landed on the Moon.”
Multiple independent lines of evidence show that humans landed on the Moon. These include contemporaneous mission records, archived voice transcripts, lunar samples, laser retroreflectors still used today, and confirmation from third parties including Soviet observers during the Cold War. The evidence is not isolated to NASA claims; it is broad, consistent, and historically well documented.
“King Leopold II ruled the Congo Free State from 1885 to 1908.”
The historical record supports this timeline. Authoritative sources consistently describe Leopold II as ruler of the Congo Free State from 1885 until Belgium formally annexed it in 1908, ending his personal control. The more exact endpoint is November 15, 1908, but that does not change the claim’s substance.
“There is no reliable population baseline for the Congo in 1885, so estimates of population loss during King Leopold II’s rule in the Congo Free State are largely guesswork.”
The core point is correct: there is no trustworthy 1885 population baseline for the Congo, so estimates of population loss under Leopold II are highly uncertain. Historians and demographers often reconstruct totals indirectly because no reliable census existed. The overstatement is calling the estimates “largely guesswork,” since some are method-based reconstructions rather than pure speculation.
“The first census in the Congo was conducted in 1924 and recorded a total population of 10 million.”
The claim overstates what happened in 1924. The best demographic sources indicate that the 1924 Congo-wide population exercise was an administrative survey or estimate, not a true census, and the 10 million figure was an approximation rather than a recorded headcount. Some secondary sources use 'census' loosely for that exercise, but that does not support the claim as written.
“The commonly cited figure of "10 million" deaths associated with King Leopold II's rule in the Congo Free State refers to a population shortfall versus expected population growth from 1885, rather than a documented kill count.”
The evidence strongly supports the central point: the famous "10 million" is a retrospective demographic estimate, not a documented tally of people directly killed. Historians derive it from uncertain population baselines and later census-era counts, often including indirect deaths and lost births. The caveat is that "expected population growth from 1885" is a simplified description of a debated and imprecise methodology.
“Sources that condemned King Leopold II for abuses in the Congo Free State do not support the specific claim that King Leopold II was responsible for killing 10 million people.”
The core point is correct: the best-known contemporary sources condemning Leopold’s rule described severe atrocities but did not document a specific 10 million death toll. That number is mainly a later demographic estimate, not a figure established in the original denunciations. The claim is slightly too broad because some modern condemnatory sources do repeat the 10 million figure.
“In population comparisons about the Congo Free State, increases in disease and declines in birth rate during the comparison period are incorrectly attributed to murders ordered by King Leopold II of Belgium.”
The claim overstates a real correction. Evidence does show that Congo Free State population decline was not caused only, or even mainly, by direct killings; disease and falling fertility were major factors. But the record does not show these factors were wrongly attributed to Leopold’s rule. Scholarship generally treats them as partly produced or worsened by the wider coercive regime—forced labor, famine, displacement, violence, and social disruption—not as unrelated demographic trends misblamed on murder orders alone.
“The Democratic Republic of the Congo held its first official national census in 1984.”
The evidence supports 1984 as the first post-independence or first modern nationwide census, not the first official national census ever held in the territory. High-authority historical sources report an earlier national census in 1955–1957 under Belgian colonial administration. As written, the claim omits that earlier census and overstates 1984’s precedence.
“The population shortfall estimate underlying the “10 million” figure was calculated by comparing a 1924 national census to an expected population growth trajectory projected from 1885.”
The claim is not supported by the historical record. The United States did not conduct a national census in 1924, and 1885 was not a nationwide census either. Authoritative sources also do not show that any “10 million” population shortfall estimate was derived by comparing a 1924 census result to a projection starting from 1885.
“In the early history of the United States, United States Army leadership deliberately used smallpox as a biological weapon against Indigenous peoples in North America by distributing smallpox-contaminated items to them.”
The documented smallpox-blanket episode occurred in 1763 at Fort Pitt under British colonial officers, before the United States existed and before there was a U.S. Army. Evidence does support deliberate biological warfare by British commanders in that case. It does not support the claim that U.S. Army leadership carried out the same act in early U.S. history.
“In the early 1990s, Albuquerque Tribune reporter Eileen Welsome found forgotten or misplaced classified documents at Kirtland Air Force Base describing unpublicized U.S. human radiation experiments.”
Welsome did uncover obscure records at Kirtland that helped expose secret U.S. human radiation experiments, but the claim misstates key details. The discovery is generally traced to 1987, not the early 1990s, and strong sources describe the records as declassified documents she was authorized to inspect, not misplaced classified files. What is accurate is that her reporting later brought previously unpublicized experiments to public attention.
“Patients at Billings Hospital in Chicago, Illinois, were injected with plutonium without their knowledge.”
Historical records and official investigations show that patients at Billings Hospital in Chicago were secretly injected with plutonium in 1945 without informed consent. The strongest support comes from U.S. government, laboratory, and university sources that directly acknowledge the experiments. There is minor uncertainty about the exact number of Billings Hospital cases, but not about whether such injections occurred there.
“NATO was created to provide a security umbrella for Western Europe backed by North American military power.”
The evidence strongly supports the claim’s core point. NATO was founded in 1949 as a collective-defense alliance that tied Western Europe’s security to U.S. and Canadian military power, especially against the Soviet threat. While the alliance also had broader political aims, those do not negate this central founding purpose.
“The North Atlantic Treaty Organization (NATO) was created to provide collective defense for its members, deter Soviet expansion during the Cold War, and protect Western Europe with a security guarantee backed by North American military power.”
The historical record strongly supports this description of why NATO was created. Its founding treaty established collective defense, and authoritative histories consistently place its creation in the context of deterring Soviet pressure and securing Western Europe through a transatlantic guarantee backed by U.S. and Canadian power. The claim is accurate, though not exhaustive of every founding aim.
“Between 35,000 and 45,000 Polish Jewish refugees obtained permanent residency or naturalization in France after 1945.”
The evidence does not support this numerical claim. Reliable sources describe major gaps in postwar records and do not provide a count of Polish Jewish refugees who both settled permanently and obtained residency or naturalization in France. The 35,000–45,000 range appears to be an unsupported extrapolation from broader figures for Poles, Jews, or transit migrants rather than a documented total for this specific group.
“In Western fashion and beauty standards, the ideal female body silhouette in the 1910s was tall, slim, and elongated, and during World War I it shifted toward a more natural and practical shape.”
The claim is largely supported: early-1910s Western fashion favored a slim, elongated silhouette, and World War I pushed dress toward simpler, more practical forms. The main caveat is wording: sources clearly support “elongated” and “slim” more than “tall,” and the wartime change was gradual rather than an instant replacement of one ideal with another.
“During Diego Maradona's playing career, the Argentina men's national football team gave a Brazil men's national team player a bottle of water containing a tranquilliser during a match period.”
The available evidence strongly supports that Argentina gave Brazil’s Branco a bottle containing a tranquilliser during the 1990 World Cup, which fell within Maradona’s playing career. Multiple reputable outlets report Branco’s account and Maradona’s later admission. The remaining caveat is that the bottle was never scientifically tested, so the conclusion rests on credible retrospective testimony rather than forensic proof.