Eureka, Utah
The city was named from the Greek word "eureka", meaning "I have found it!" The city and its history was explored on the show "Ghost Adventures" in 2018.
ETA (separatist group)
ETA grew out of a student group called Ekin, founded in the early 1950s, which published a magazine and undertook direct action. ETA was founded on 31 July 1959 as Euskadi Ta Askatasuna (Basque Homeland and Freedom) by students frustrated by the moderate stance of the Basque Nationalist Party. (Originally, the name for the organisation used the word "Aberri" instead of "Euskadi", creating the acronym "ATA". However, in some Basque dialects, "ata" means "duck", so the name was changed.)