Why is the term Classic used to describe the musical style of the last half of the eighteenth century?

The term "Classical" in music refers to a specific period of music history, typically referencing the style of music composed in the late 18th century. This period is characterized by clarity, balance, and order in composition, and it includes famous composers like Mozart and Haydn who were prominent during this era. "Classic" is used to denote the enduring popularity and influence of this musical style.