Eureka (word)
The exclamation 'Eureka!' is attributed to the ancient Greek scholar Archimedes. He reportedly proclaimed "Eureka! Eureka!" after he had stepped into a bath and noticed that the water level rose, whereupon he suddenly understood that the volume of water displaced must be equal to the volume of the part of his body he had submerged. (This relation is "not" what is known as Archimedes' principle—that deals with the "upthrust" experienced by a body immersed in a fluid.) He then realized that the volume of irregular objects could be measured with precision, a previously intractable problem. He is said to have been so eager to share his discovery that he leapt out of his bathtub and ran naked through the streets of Syracuse.
Cueca
While cueca's origins are not clearly defined, it is considered to have mostly European Spanish and arguably indigenous influences. The most widespread version of its origins relates it with the zamacueca which arose in Peru as a variation of Spanish Fandango dancing with "criollo". The dance is then thought to have passed to Chile and Bolivia, where its name was shortened and where it continued to evolve. Due to the dance's popularity in the region, the Peruvian evolution of the zamacueca was nicknamed "la chilena", "the Chilean", due to similarities between the dances. Later, after the Pacific War, the term marinera, in honor of Peru's naval combatants and because of hostile attitude towards Chile, was used in place of "la chilena." In March 1879 the writer and musician Abelardo Gamarra renamed the “chilena” as the “marinera”. The Marinera, Zamba and the Cueca styles are distinct from each other and from their root dance, the zamacueca.