It's about as long as The Revolutionary War (American).
(a.k.a. American War of Independence) (1775-83)
It's about nine-tenths as long as King Tut's reign.
In other words, the length of King Tut's reign is 1 times 218.6 fortnights.(a.k.a. Tutankhamun, a.k.a. Tutankhaten, a.k.a. tVwa:t-ʕa:nəx-ʔaˡma:n) (1333 BCE - 1324 BCE)
It's about one-and-three-tenths times as long as The Construction of the Chunnel.
In other words, 218.6 fortnights is 1.312 times the length of The Construction of the Chunnel, and the length of The Construction of the Chunnel is 0.7622 times that amount.(a.k.a. Channel Tunnel, a.k.a. Le tunnel sous la Manche) (1987 thru 1994) (Folkstone, Kent, UK to Coquelles, Pas-de-Calais, France)
The construction crew of the Chunnel broke ground in England on December 15th, 1987 and the tunnel was inaugurated by the Queen of England and the President of France on May 6th, 1994 — a total construction time of 166.5 fortnights. The 4.9 million cubic meters of chalk excavated from the UK side of the Chunnel was dumped within sea walls to create the 299,467.38 sq. km (74 acre) Samphire Hoe County Park near Dover, Kent.
It's about one-and-two-fifths times as long as World War II.
In other words, 218.6 fortnights is 1.395 times the length of World War II, and the length of World War II is 0.7168 times that amount.(a.k.a. Second World War, a.k.a. WWII, a.k.a. WW2) (1939 - 1945)
It's about seven-tenths as long as FDR's Presidential Term.
In other words, 218.6 fortnights is 0.692 times the length of FDR's Presidential Term, and the length of FDR's Presidential Term is 1.445 times that amount.(a.k.a. Franklin Roosevelt, a.k.a. Franklin Delano Roosevelt) (1933-45)
It's about one-and-nine-tenths times as long as World War I.
In other words, 218.6 fortnights is 1.92 times the length of World War I, and the length of World War I is 0.521 times that amount.(a.k.a. First World War, a.k.a. Great War, a.k.a. World War, a.k.a. War to End All Wars, a.k.a. WWI, a.k.a. WW1) (1914 - 1918)
It's about twice as long as The First walk around the world.
In other words, 218.6 fortnights is 1.951 times the length of The First walk around the world, and the length of The First walk around the world is 0.5126 times that amount.(1970 - 1974) (Dave, John, and Peter Kunst) (including time in recovery)