8th to 1st Century BC: Latin was spoken by the Roman Republic, which dominated the Italian peninsula. Latin became the official language of all Roman territories and was used in administration, law, literature, and everyday communication.
1st Century AD: The Roman Empire continued to expand, spreading Latin throughout Europe, North Africa, and the Middle East. It became the lingua franca of the vast and diverse empire.
4th Century AD: The Roman Empire split into two parts, with Rome as the capital of the Western Roman Empire. Latin remained the official language, but the empire began to decline and face various challenges.
5th Century AD: Germanic tribes invaded and eventually overthrew the Western Roman Empire. The Visigoths, Vandals, and Ostrogoths conquered parts of Italy, bringing their own languages and cultures. Latin continued to be spoken alongside other languages during this tumultuous period.
6th Century AD: The Eastern Roman Empire, also known as the Byzantine Empire, reconquered Italy and attempted to restore Roman authority. Latin was revived as the official language, but its use had started to decline in everyday communication.
7th to 9th Century AD: The Lombards, a Germanic people, invaded and ruled much of Italy. Latin continued to be used in official settings, but it was no longer the primary language of the majority population.
9th to 11th Century AD: Vulgar Latin, the spoken form of Latin, gradually developed into distinct regional languages, such as Italian, French, Spanish, and Portuguese. In Italy, the Florentine dialect would eventually become the standard for the Italian language.
13th to 14th Century AD: The Italian Renaissance marked a renewed interest in classical learning, including the study of Latin literature and culture. However, Latin was no longer widely used as a primary communication tool.
Therefore, the approximate time when people in Italy first spoke Latin would be during the 8th century BC, when the Roman Republic was established. Over time, Latin evolved and influenced various regional languages that emerged in the Italian peninsula.