
“All Gaul is divided into three parts”
Gallia est omnis divisa in partes tres.
Book I, Ch. 1 http://www.thelatinlibrary.com/caesar/gall1.shtml; these are the first words of De Bello Gallico, the whole sentence is "All Gaul is divided into three parts, one of which the Belgae inhabit, the Aquitani another, those who in their own language are called Celts, in ours Gauls, the third." http://data.perseus.org/citations/urn:cts:latinLit:phi0448.phi001.perseus-lat1:1.1.1
De Bello Gallico