Decapoils

ten cities=deka, ten, and polis, a city, a district on the east
and south-east of the Sea of Galilee containing "ten cities,"
which were chiefly inhabited by Greeks. It included a portion of
Bashan and Gilead, and is mentioned three times in the New
Testament (Matt. 4:25; Mark 5:20; 7:31). These cities were
Scythopolis, i.e., "city of the Scythians", (ancient Bethshean,
the only one of the ten cities on the west of Jordan), Hippos,
Gadara, Pella (to which the Christians fled just before the
destruction of Jerusalem), Philadelphia (ancient Rabbath-ammon),
Gerasa, Dion, Canatha, Raphana, and Damascus. When the Romans
conquered Syria (B.C. 65) they rebuilt, and endowed with certain
privileges, these "ten cities," and the province connected with
them they called "Decapolis."