Bar Kokhba coins had been found outside Jerusalem, but only four within the city (out of more than 22,000 found within the city). The Israel Antiques Authority's archaeologists Moran Hagbi and Dr. Joe Uziel speculated that "It is possible that a Roman soldier from the Tenth Legion found the coin during one of the battles across the country and brought it to their camp in Jerusalem as a souvenir." Galilee Among those findings are the rebel hideout systems in the Galilee, which greatly resemble the Bar Kokhba hideouts in Judea, and though are less numerous, are nevertheless important. The fact that Galilee retained its Jewish character after the end of the revolt has been taken as an indication by some that either the revolt was never joined by Galilee or that the rebellion was crushed relatively early there compared to Judea. Northern valleys Several historians, notably W. Eck of the U-ty of Cologne, theorized that the Tel Shalem arch depicted a major battle between Roman armies and Bar Kokhba's rebels in Bet Shean valley, thus extending the battle areas some 50 km northwards from Judea. The 2013 discovery of the military camp of Legio VI Ferrata near Tel Megiddo, and ongoing excavations there may shed light to extension of the rebellion to the northern valleys. However, Eck's theory on battle in Tel Shalem is rejected by M. Mor, who considers the location implausible given Galilee's minimal (if any) participation in the Revolt and distance from the main conflict flareup in Judea proper. Samaria A 2015 archaeological survey in Samaria identified some 40 hideout cave systems from the period, some containing Bar Kokhba's minted coins, suggesting that the war raged in Samaria at high intensity. Transjordan Bowersock suggested of linking the Nabateans to the revolt, claiming "a greater spread of hostilities than had formerly been thought... the extension of the Jewish revolt into northern Transjordan and an additional reason to consider the spread of local support among Safaitic tribes and even at Gerasa." Sources The revolt is mostly still shrouded in mystery, and only one brief historical account of the rebellion survives. Dio Cassius The best recognized source for the revolt is Cassius Dio, Roman History (book 69), even though the writings of the Roman historian concerning the Bar Kokhba revolt survived only as fragments. The account extends on about two pages and is largely an historical perspective with the general