Classical Latin is the form of the Latin language used in ancient Rome from around 75 BC to 200 AD. It is characterized by its formal grammar, vocabulary, and style, often found in literature, speeches, and official documents. Notable authors like Cicero and Virgil wrote in this style, which set the standard for later Latin literature. This version of Latin differs from Vulgar Latin, the everyday speech of the common people, which evolved into the Romance languages. Classical Latin is still studied today for its influence on modern languages, law, science, and literature, making it an important part of Western cultural heritage.