Saracen was a generic term for Muslims widely used among Christian writers in Europe during the later medieval era. The term's meaning evolved during its history. In the early centuries CE, Greek and Latin writings used this term to refer to the people who lived in desert areas in and near the Roman province of Arabia. They were distinguished as a people from others known as Arabs. In Europe during the Early Medieval era, the term came to be associated with Arab tribes as well. By the 12th century, "Saracen" had become synonymous with "Muslim" in Medieval Latin literature. Such expansion in the meaning of the term had begun centuries earlier among the Byzantine Romans, as evidenced in documents from the 8th century. In the Western languages before the 16th century, "Saracen" was commonly used to refer to Muslim Arabs, and the words "Muslim" and "Islam" were generally not used (with a few isolated exceptions).