The Geographica or Geography, is an encyclopedia of geographical knowledge, consisting of 17 books, written in Greek in the late first century BC, or early first century AD, and attributed to Strabo, an educated citizen of the Roman Empire of Greek descent. There is a fragmentary palimpsest dating to the fifth century. The earliest manuscripts of books 1–9 date to the tenth century, with a thirteenth-century manuscript containing the entire text.