It weren't Euripedes with Eurekas, it were Archistotle. I doubt if Euripedes ever took a bath, the dirty bugger. The Vikings didn't come raping and pillaging, they alsways said please before chopping your arms and legs off, it was just a Saga tour.
There's the myth of the Munster cloak being acquired from shipwrecked Armadistas.
George Washington the brave and chivalrous- who just happened to have 50 Frenchmen scalped on the Ohio in the 1750s.
That king with the waves, wasn't he King Cnut the Dyslexic, a descendant of Ethylred the Unsteady?
Lemmings that jump over cliffs?
And of course the mythical age when milkmaids and ploughboys sang folk songs all the way to the wake.