Kelsey (given name) Kelsey (given name) Kelsey Is a unisex given name of English origin. The name most probably derives from an Old English given name "Ceolsige", which meant "ship's victory", or it could be a place name meaning "Cenel's island". "Cenel's Island" is a combination of the Old English word "cenel", meaning "fierce", and "eg", meaning island. Kelsey was the 201st most popular name for girls born in the United States in 2007. It was among the top 50 most popular names for girls there in the 1990s. It was last ranked among the top 1,000 most common names for boys there
Greek mathematics Greek mathematics Greek mathematics refers to mathematics texts and advances written in Greek, developed from the 7th century BC to the 4th century AD around the shores of the Eastern Mediterranean. Greek mathematicians lived in cities spread over the entire Eastern Mediterranean from Italy to North Africa but were united by culture and language. Greek mathematics of the period following Alexander the Great is sometimes called Hellenistic mathematics. The word "mathematics" itself derives from the , meaning "subject of instruction". The study of mathematics for its own sake and the use of generalized mathematical theories and proofs is the key