Sagot :
Classical Europe is where the classical music you think of comes from if that helps any.
Generally refers to Roman and Greek history - more specifically the Athenian Democracy, the Roman Empire, etc. However, it can also extend to the high medieval period - it's loosely defined at best. Ultimately, it depends on context - classical music is from a different time period to classical languages for example - but as a general answer the period of time during which the Roman Empire ruled is most common.