Languages of the Ottoman Empire
The language of the court and government of the Ottoman Empire was Ottoman Turkish, but many other languages were in contemporary use in parts of the empire. Although the minorities of the Ottoman Empire were free to use their language amongst themselves, if they needed to communicate with the government they had to use Ottoman Turkish.
List of lingua francas
Prior to European colonization, the Occaneechi dialect of the Tutelo language served as a lingua franca in the land that would become the state of Virginia. Tutelo was a Siouan language. But Robert Beverley, Jr. observed that the Tuscarora, who spoke an Iroquoian language, and the Powhatan, who spoke an Algonquian language, both used Occaneechi in religious ceremonies, much like modern Christian communities use Latin. Beverley also noted that the Occaneechi language was used by all native nations of Virginia as a trade language.