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Fact-check log

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All 113 facts, the source for each, and how many checks it passed.

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Each fact is written in our own words with its source open beside it. Our build script keeps a copy of the text of every source and checks that the key words and figures in each fact really appear there. If a check fails, the site won’t build. Anything that isn’t a sourced fact, such as a view or a joke, is labelled Our opinion or comes from Useless. The drawings are our own and simplified.

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#FactSourceChecks
1The Bermuda Triangle is a stretch of the western North Atlantic where ships, planes and people are alleged to have vanished mysteriously.NOAA National Ocean Service: What is the Bermuda Triangle?1 passed
2Britannica says more than 50 ships and 20 aircraft are said to have disappeared there.Britannica: Bermuda Triangle (with Sargasso Sea)1 passed
3Its edges are not universally agreed. Roughly, it is a triangle reaching from the Atlantic coast of Florida to Bermuda to the Greater Antilles.Britannica: Bermuda Triangle (with Sargasso Sea)2 passed
4Estimates of its area range from 500,000 to 1,510,000 square miles (1.3 million to 3.9 million square kilometres).Britannica: Bermuda Triangle (with Sargasso Sea)1 passed
5Reports of unexplained events there date back to the mid-19th century.Britannica: Bermuda Triangle (with Sargasso Sea)1 passed
6Some ships were reportedly found abandoned for no clear reason; others sent no distress signal and were never seen again.Britannica: Bermuda Triangle (with Sargasso Sea)2 passed
7There are no official maps of its boundaries, and the U.S. Board on Geographic Names doesn’t recognise “Bermuda Triangle” as an official name.NOAA National Ocean Service: What is the Bermuda Triangle?2 passed
8Vincent Gaddis, who popularised the name, described it as a line from Florida to Bermuda, another from Bermuda to Puerto Rico, and a third back to Florida through the Bahamas.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
9Larry Kusche’s map shows the Triangle as about a thousand miles on a side.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
10Boats and planes still cross the Triangle every day without trouble.Britannica: Bermuda Triangle (with Sargasso Sea)1 passed
11NOAA says there is no evidence that mysterious disappearances happen more often in the Bermuda Triangle than in any other large, busy area of ocean.NOAA National Ocean Service: What is the Bermuda Triangle?1 passed
12The U.S. Navy and U.S. Coast Guard say there are no supernatural explanations for disasters at sea: the forces of nature and human error are enough.NOAA National Ocean Service: What is the Bermuda Triangle?2 passed
13NOAA says environmental factors could explain many, if not most, of the disappearances.NOAA National Ocean Service: What is the Bermuda Triangle?1 passed
14Britannica says geophysical and environmental factors are the most likely cause.Britannica: Bermuda Triangle (with Sargasso Sea)1 passed
15Most Atlantic tropical storms and hurricanes pass through the Bermuda Triangle, and before better weather forecasting they claimed many ships.NOAA National Ocean Service: What is the Bermuda Triangle?2 passed
16The Gulf Stream can cause rapid, sometimes violent, changes in the weather.NOAA National Ocean Service: What is the Bermuda Triangle?1 passed
17The many islands of the Caribbean create shallow waters that can be treacherous for ships.NOAA National Ocean Service: What is the Bermuda Triangle?1 passed
18There is some evidence that in the Triangle a magnetic compass sometimes points to true north rather than magnetic north.NOAA National Ocean Service: What is the Bermuda Triangle?2 passed
19One idea is that pilots failed to allow for the agonic line, where no compass correction is needed, and made serious navigation errors.Britannica: Bermuda Triangle (with Sargasso Sea)2 passed
20Kusche, a pilot, argues the opposite: where the difference between true and magnetic north is near zero, navigation is simpler, because adjusting for zero is easy.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
21Another theory is rogue waves, which can reach up to 100 feet (30.5 metres). Storms from several directions can meet in the area, making them more likely.Britannica: Bermuda Triangle (with Sargasso Sea)2 passed
22Other ideas, NOAA says, are more scientific but lack evidence: methane gas bursting from the seabed, and disturbances in the Earth’s magnetic field.NOAA National Ocean Service: What is the Bermuda Triangle?3 passed
23NOAA lists aliens, the lost continent of Atlantis and vortices into other dimensions among the “whimsical ideas”.NOAA National Ocean Service: What is the Bermuda Triangle?4 passed
24Britannica says some of the theories put forward have been fanciful.Britannica: Bermuda Triangle (with Sargasso Sea)1 passed
25With foul weather or poor navigation, the ocean can be very deadly, and that is true all over the world.NOAA National Ocean Service: What is the Bermuda Triangle?1 passed
26The Gulf Stream is a strong, warm ocean current in the western North Atlantic.NOAA National Ocean Service: How fast is the Gulf Stream?1 passed
27It flows north along the coast of Florida, turns east off North Carolina and heads northeast across the Atlantic.NOAA National Ocean Service: How fast is the Gulf Stream?1 passed
28Its average speed is 6.4 km/h (4 mph).NOAA National Ocean Service: How fast is the Gulf Stream?1 passed
29It is fastest near the surface, typically up to about 9 km/h (5.6 mph).NOAA National Ocean Service: How fast is the Gulf Stream?1 passed
30It slows to about 1.6 km/h (1 mph) as it widens to the north.NOAA National Ocean Service: How fast is the Gulf Stream?1 passed
31It carries more water than all the world’s rivers put together.NOAA National Ocean Service: How fast is the Gulf Stream?1 passed
32The Sargasso Sea is an oval, fairly still area of the North Atlantic, strewn with floating Sargassum seaweed.Britannica: Bermuda Triangle (with Sargasso Sea)1 passed
33It lies between 20° and 35° North and 30° and 70° West; the Gulf Stream forms part of its western edge.Britannica: Bermuda Triangle (with Sargasso Sea)2 passed
34It is 1,500 to 7,000 metres (5,000 to 23,000 feet) deep.Britannica: Bermuda Triangle (with Sargasso Sea)1 passed
35The Sargasso Sea surrounds Bermuda. Columbus was the first to mention it, crossing it on his first voyage in 1492.Britannica: Bermuda Triangle (with Sargasso Sea)1 passed
36Early sailors feared getting tangled in the seaweed. Britannica says that fear was unfounded.Britannica: Bermuda Triangle (with Sargasso Sea)1 passed
37The seaweed floats on small berry-like bladders.Britannica: Bermuda Triangle (with Sargasso Sea)1 passed
38It is a biological desert, with very little plankton.Britannica: Bermuda Triangle (with Sargasso Sea)1 passed
39Shortly after 2pm on 5 December 1945, five TBM Avenger torpedo bombers left Naval Air Station Fort Lauderdale, Florida, on a routine navigation training flight.Naval History and Heritage Command: The Loss of Flight 191 passed
40The exercise, Navigation Problem No. 1, was to fly east, make practice bombing runs at Hens and Chickens Shoals, turn north over Grand Bahama Island, then fly back to base.Naval History and Heritage Command: The Loss of Flight 191 passed
41The legs were 56 miles east to the shoals, 67 more miles east, 73 miles on a heading of 346 degrees, then 120 miles on 241 degrees back to Fort Lauderdale.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)3 passed
42The whole route was about 316 miles and should have taken about 2 hours 40 minutes.National Archives Prologue blog: The Official Record and the Loss of Flight 19 (2017)1 passed
43It is often called the “Lost Patrol”, but Flight 19 was a routine training mission.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)1 passed
44The five planes carried 14 men: six Navy and eight Marines.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)1 passed
45The instructor, Lt Charles Carroll Taylor, was a combat veteran with 2,509.3 flying hours, 606 of them in the Avenger.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)1 passed
46It was the first time Taylor would lead this particular navigation exercise; he had recently arrived from NAS Miami.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)2 passed
47The four other pilots were much less experienced, averaging about 300 flying hours each.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)1 passed
48All five planes were missing their 24-hour clocks, a commonly pilfered item; pilots were supposed to have wristwatches.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)1 passed
49The fuel tanks were full: enough for 5.5 hours of flying.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)1 passed
50The flight took off at 14:10 and was due back at 17:23.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)2 passed
51At about 15:40 Taylor radioed that both his compasses were out and he was sure he was over the Florida Keys.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)2 passed
52In fact he was well northeast of Fort Lauderdale, not southwest as he thought.National Archives Prologue blog: The Official Record and the Loss of Flight 19 (2017)1 passed
53Kusche, who flew the route himself, says parts of the small islands of the northern Bahamas do look like some of the Florida Keys.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
54Taylor called himself MT-28, a Miami call sign, rather than FT-28, which Kusche reads as a sign he thought he was flying from Miami.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)2 passed
55Taylor was the instructor but not the most senior officer on the flight; that was Captain Edward Powers of the Marines.National Archives Prologue blog: The Official Record and the Loss of Flight 19 (2017)2 passed
56Two students were heard on the radio saying that if they could just fly west they could get home.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)1 passed
57Radio direction-finding stations placed the flight north of the Bahamas and east of Florida, but no one thought to broadcast that position to the planes.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)2 passed
58By 5:30pm the sun had set, the weather was getting worse and the planes were low on fuel.National Archives Prologue blog: The Official Record and the Loss of Flight 19 (2017)2 passed
59The last message heard, from Taylor at 7:04pm, said they would have to ditch unless they found land: “when the first plane drops below ten gallons, we all go down together.”National Archives Prologue blog: The Official Record and the Loss of Flight 19 (2017)2 passed
60A British tanker in the area, the Viscount Empire, reported “tremendous seas and winds of high velocity”.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)2 passed
61The Navy’s historian says the most likely explanation is that the planes ditched together off Florida’s east coast, north of the Bahamas, as a severe weather front moved in.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)1 passed
62For five days the Coast Guard and Navy searched more than 250,000 square miles of sea. They found no airmen, no wreckage, no life raft, not even an oil slick.Naval History and Heritage Command: The Loss of Flight 192 passed
63On 6 December more than 200 planes and 17 ships joined the search.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
64It was one of the largest air and sea searches in history, and no confirmed trace has ever been found.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)1 passed
65Fourteen men were lost on Flight 19 and 13 more on the flying boat sent to search for them: 27 in all.Naval History and Heritage Command: The Loss of Flight 191 passed
66The search plane, a PBM Mariner flying boat called Training 49, took off from NAS Banana River with 13 men and made its last radio call at 19:30.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)3 passed
67At 19:50 the tanker Gaines Mills saw a burst of flames, apparently an explosion, with flames 100 feet high.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)1 passed
68The carrier USS Solomons was tracking the Mariner on radar when it suddenly vanished from the screen at the same position.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)2 passed
69Mariners were nicknamed “the flying gas tank”, because petrol fumes could collect inside them.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)3 passed
70A Mariner carried almost 2,000 gallons of fuel.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
71The Navy concluded that a faulty fuel system caused the Mariner to explode.National Archives Prologue blog: The Official Record and the Loss of Flight 19 (2017)1 passed
72The board of inquiry admitted: “We are not able to even make a good guess as to what happened.”NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)1 passed
73The Navy’s investigation blamed pilot error, saying Taylor was “uncertain as to in what position lay the Peninsula of Florida”.National Archives Prologue blog: The Official Record and the Loss of Flight 19 (2017)2 passed
74Taylor’s mother challenged that verdict. The Navy’s records board found an injustice, cleared him of blame and changed the cause to “unknown”.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)3 passed
75The Navy’s historian adds that it most certainly wasn’t due to aliens or the Bermuda Triangle.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)1 passed
76The National Archives says the loss of the five planes and 14 men is a fact and undisputed; that is where the conspiracy theories begin.National Archives Prologue blog: The Official Record and the Loss of Flight 19 (2017)2 passed
77Some of the official records, including the Navy’s investigations at the time, are kept at the National Archives at Fort Worth.National Archives Prologue blog: The Official Record and the Loss of Flight 19 (2017)1 passed
78In April 2017 a plaque to the crew of Training 49 was put up at the old NAS Banana River seaplane ramp.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)2 passed
79Older retellings include dramatic radio messages such as “It looks like we are entering white water”; the Navy’s own overview page still repeats them.Naval History and Heritage Command: The Loss of Flight 191 passed
80The Navy’s historian says numerous accounts have embellished the story, and sticks to the official record.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)2 passed
81Kusche traced fictionalised, dramatised radio messages back to a 1962 American Legion Magazine article by Allan W. Eckert; later writers attributed them to Flight 19.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)3 passed
82Flight 19 was the most significant event behind the Bermuda Triangle myth.NHHC H-Gram 057-4: The Disappearance of Flight 19 and Training 49 (Samuel J. Cox, 2021)1 passed
83Kusche argues that if Flight 19 had returned safely, the idea of the Bermuda Triangle would never have been created.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
84USS Cyclops was named after the one-eyed giants of Greek myth.Dictionary of American Naval Fighting Ships: Cyclops II (Fuel Ship No. 4)1 passed
85She was a collier, a coal-carrying fuel ship, launched on 7 May 1910 by William Cramp and Sons of Philadelphia.Dictionary of American Naval Fighting Ships: Cyclops II (Fuel Ship No. 4)1 passed
86She was 542 feet long, displaced 19,360 tons and had a complement of 236.Dictionary of American Naval Fighting Ships: Cyclops II (Fuel Ship No. 4)3 passed
87She helped carry refugees from Tampico, Mexico, to New Orleans.Dictionary of American Naval Fighting Ships: Cyclops II (Fuel Ship No. 4)1 passed
88She was commissioned on 1 May 1917, when the U.S. entered the First World War.Dictionary of American Naval Fighting Ships: Cyclops II (Fuel Ship No. 4)1 passed
89In 1918 she sailed to Brazil to refuel British ships in the South Atlantic.Dictionary of American Naval Fighting Ships: Cyclops II (Fuel Ship No. 4)1 passed
90She left Rio de Janeiro on 16 February 1918, called at Barbados on 3 and 4 March, and was never heard from again.Dictionary of American Naval Fighting Ships: Cyclops II (Fuel Ship No. 4)2 passed
91She vanished with all hands in early March 1918, on her way back from Brazil.National Museum of the U.S. Navy: USS Cyclops Mystery1 passed
92Many ships searched for her. At first she was thought to have been sunk by a German submarine.National Museum of the U.S. Navy: USS Cyclops Mystery1 passed
93Her wreck has never been found, and the cause of her loss remains unknown.National Museum of the U.S. Navy: USS Cyclops Mystery1 passed
94Britannica says she went missing in the Bermuda Triangle area; there were no survivors.Britannica: Bermuda Triangle (with Sargasso Sea)1 passed
95The official Navy ship history calls her loss one of the sea’s unsolved mysteries.Dictionary of American Naval Fighting Ships: Cyclops II (Fuel Ship No. 4)2 passed
96Kusche says E.V.W. Jones of the Associated Press, on 16 September 1950, was the first to write about the region as a place of mysterious disappearances.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
97George X. Sand expanded on it in Fate magazine in October 1952.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)2 passed
98In the 1950s, best-selling UFO books suggested Flight 19 had been captured by aliens.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
99The catchy name came from Vincent H. Gaddis, in an article called “The Deadly Bermuda Triangle” in Argosy magazine in February 1964.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)3 passed
100Gaddis wrote that the disappearances were “far beyond the laws of chance”, but gave no figures.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)2 passed
101The article became a chapter, “The Triangle of Death”, in Gaddis’s 1965 book Invisible Horizons.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)2 passed
102In 1975 the librarian and pilot Larry Kusche published The Bermuda Triangle Mystery—Solved.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
103He went back to the earliest reports, newspapers and the official Navy report, and conducted 92 interviews about Flight 19.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)2 passed
104He found that no one who had called Flight 19 paranormal or UFO-related had used the official Navy report.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
105Larry Kusche found that roughly half of the so-called unsolved mysteries happened far from the Triangle, some thousands of miles away.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
106One ship found dismasted and lying on its side in the Pacific Ocean had been counted as a Triangle mystery.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
107Mystery writers rarely mentioned anything that spoiled the mystery, especially hurricanes and other severe weather.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
108Kusche found no credible evidence for the oft-repeated tales of a ship with only a canary on board, or still-warm meals on the table.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
109He called the Triangle a “manufactured” mystery, built on poor research and copied, embellished stories.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)2 passed
110One book’s plane that “seemed to be landing as if buoyed up by a cushion of air” was simply ground effect, extra lift near the ground or water that any pilot knows.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
111In the 1977 film Close Encounters of the Third Kind, the Avengers suddenly appear in the Mojave Desert.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed
112The National Archives says lurid books, articles and films have blamed magnetic disturbances, whirlpools, sea monsters and aliens.National Archives Prologue blog: The Official Record and the Loss of Flight 19 (2017)1 passed
113The name has entered the language: in baseball, a hit that can’t be caught is said to have gone into the Bermuda Triangle.Skeptical Inquirer: The Bermuda Triangle Mystery Delusion, by Larry Kusche (2015)1 passed