Youre wayyyyyy off!
Triathlon is considered by some to have its beginnings in 1920s France.  According to triathlon historian and author Scott Tinley (and others  ), the origin of triathlon is attributed to a race during the 1920s–1930s that was called variously "Les trois sports", "La Course des Débrouillards", and "La course des Touche à Tout". This race is held every year in France near Joinville-le-Pont, in Meulan and Poissy. An earlier tri-sport event in 1902 featured running, cycling, and canoeing.  There are documented tri-sport events featuring running, swimming, & cycling (not necessarily in that order) in 1920, 1921, 1945, and the 1960s.  In 1920, the French newspaper L´Auto reported on a competition called "Les Trois Sports" with a 3 km run, 12 km bike, and a swim across the channel Marne. Those three parts were done without any break.
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