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.
Eureka, California
The Wiyot people lived in Jaroujiji (Wiyot: "where you sit and rest"), now known as Eureka, for thousands of years before European arrival. They are the farthest-southwest people whose language has Algonquian roots. Their traditional coastal homeland ranged from the lower Mad River through Humboldt Bay and south along the lower basin of the Eel River. The Wiyot are particularly known for their basketry and fishery management. An extensive collection of intricate basketry of the area's indigenous groups exists in the Clarke Historical Museum in Old Town Eureka.