The Classical Period of music may have given its name as the popular descriptor for all of Western sophisticated instrumental composition, but its actual timeline is relatively short. All of the other delineated musical eras get at least a full century. However, the Classical Era is often cited as the latter half of the eighteenth century. At its longest, the Classical Era ran just seventy to eighty years, ending no later than 1820. Despite the Classical Era's short run, its impact on instrumental music has been enormous.