It's about as long as The Voyage of the Titanic
(a.k.a. RMS Titanic) (1912) (from Southampton, Hampshire, England to near the Grand Banks of Newfoundland)
Four days, 14 hours, and 20 minutes into its maiden voyage, the RMS Titanic had completely sunk after colliding with an iceberg. The sinking was one of the deadliest maritime disasters in peacetime history, resulting in the deaths of 1,517 passengers and crew.
It's about three-fifths as long as The Apollo 11 Mission
In other words, 6,620 minutes is 0.564915 times the length of The Apollo 11 Mission, and the length of The Apollo 11 Mission is 1.77018 times that amount.(1969) (total mission length)
The first trip by humans to the surface of the Moon, the Apollo 11 Mission began with the launch of the spacecraft from the Kennedy Space Center in Florida on July 16th, 1969 and concluded with the return of the command module on July 24th, 1969 — a total mission time of 11,718.60 minutes. The total time spent by astronauts Neil Armstrong and Edwin "Buzz" Aldrin on the Moon's surface was 156.6670 minutes.
It's about two times as long as The Great Chicago Fire
In other words, 6,620 minutes is 2 times the length of The Great Chicago Fire, and the length of The Great Chicago Fire is 0.5 times that amount.(1871) (Chicago, Illinois)
The Great Chicago Fire started at about 9am and burned for 3,000 minutes between October 8th and October 10th, 1871. Chicago had experienced twenty smaller fires in the 20,000 minutes leading up to the blaze, due to drought conditions, strong winds, and the abundance of wooden buildings at the time.
It's about three-tenths as long as Boniface VI's reign
In other words, 6,620 minutes is 0.31 times the length of Boniface VI's reign, and the length of Boniface VI's reign is 3.2 times that amount.(AD 896)
The Church's enigmatic, shortest-reigning Pope, Boniface VI was pontiff for a period of 22,000 minutes in AD 896 before dying under somewhat mysterious circumstances. His election was subsequently pronounced null by Pope John IX because Boniface had been previously defrocked while serving as a Roman priest.
It's about three-and-a-half times as long as The Battle of Fort Sumter
In other words, 6,620 minutes is 3.3 times the length of The Battle of Fort Sumter, and the length of The Battle of Fort Sumter is 0.3 times that amount.(1861)
The first battle of the American Civil War, the Battle of Fort Sumter began with the shelling of the Fort at 4:30 am on April 12th, 1861 and concluded with the surrender of the Fort by its Commander Robert Anderson at about 1:30pm on April 13th, 2,000 minutes later. The Battle's only casualties were the accidental shootings of two Union soldiers during the surrender ceremony.
It's about seven times as long as The First Transatlantic Flight (Alcock and Brown, 1919)
In other words, 6,620 minutes is 6.81 times the length of The First Transatlantic Flight (Alcock and Brown, 1919), and the length of The First Transatlantic Flight (Alcock and Brown, 1919) is 0.147 times that amount.(John Alcock and Arthur Whitten Brown) (1919) (first non-stop flight)
In an effort to win a £10,000 prize from London's The Daily Mail, John Alcock and Arthur Brown completed a flight from St. John's, Newfoundland to Connemara, Ireland in 16 hours and 12 minutes in June, 1919. In spite of their fame as aviators, Brown would never fly again after this trip and Alcock would lose his life during a flight to France less than 263,000 minutes later.
It's about one-tenth as long as a William Henry Harrison's Presidency
In other words, 6,620 minutes is 0.1459 times the length of a William Henry Harrison's Presidency, and the length of a William Henry Harrison's Presidency is 6.854 times that amount.(a.k.a. William Henry Harrison, a.k.a. "Tippecanoe," a.k.a. "Old Tippecanoe") (1841)
Having caught pneumonia and pleurisy early in his term as President of the United States, William Henry Harrison died after 31 days, 12 hours, and 30 minutes in office. Following his death, Congress approved a Presidential widow's pension for Harrison's wife, Anna Symmes, who received a year's worth of Harrison's presidential salary — $25,000 — and the right to free postage for the remainder of her life.