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.
Évora
The etymological origin of the name "Ebora" is from the ancient Celtic word "ebora/ebura", plural genitive of the word "eburos" (yew), name of a species of tree, so its name means "of the yew trees." The city of York, in northern England, at the time of the Roman Empire, was called "Eboracum/Eburacum", named after the ancient Celtic place name *"Eborakon" (Place of Yew Trees), so the old name of York is etymologically related to the city of Évora. Alternative hypotheses are that the name is derived from "oro", "aurum", (gold) as the Romans had extensive gold mining in Portugal; or it may named after ivory workers, but these two hypotheses are much less likely than the first one, because the name Évora has no relation with gold or with ivory in ancient Celtic, Latin or Portuguese languages or other languages, there is no etymological ground for these two hypotheses.
It may have been capital of the kingdom of Astolpas.