Europe

The use of the term “Europe” has developed gradually throughout history. In antiquity, the Greek historian Herodotus mentioned that the world had been divided by unknown persons into three parts, Europe, Asia, and Libya (Africa), with the Nile and the River Phasis forming their boundaries—though he also states that some considered the River Don, rather than the Phasis, as the boundary between Europe and Asia. Europe’s eastern frontier was defined in the 1st century by geographer Strabo at the River Don. The Book of Jubilees described the continents as the lands given by Noah to his three sons. Europe was defined as stretching from the Pillars of Hercules at the Strait of Gibraltar, separating it from North Africa, to the Don, separating it from Asia.
The etymology of Europe is uncertain. One theory suggests that it is derived from the Greek εὐρύς (eurus), meaning “wide, broad” and ὤψ/ὠπ-/ὀπτ- (ōps/ōp-/opt-), meaning "eye, face, countenance", hence Eurṓpē, “wide-gazing”, “broad of aspect”. Another theory suggests that it is based on a Semitic word such as the Akkadian erebu meaning “to go down, set” (in reference to the sun), cognate to Phoenician 'ereb “evening; west” and Arabic Maghreb, Hebrew ma'arav.