About B.C. 56 Caius Volusenus was sent to this country by Julius Cæsar to examine the coast preparatory to an invasion. The step was threatened, because it was alleged that the Britons had aided and abetted some of the Gaulish tribes in their resistance to the Roman domination. On August 26th, B.C. 55, Cæsar himself set sail from Portus Itius, near Boulogne, with two legions, and effected a landing, presumably near Deal. A good deal of discussion has taken place relative to this point, and much has been said as to the action of the winds and tides in determining his landing place. Probably he would have made a feint at Dover and one or two other places, under cover of which the main body would land at a spot weakly defended. At all events, the resistance offered by the British was soon overcome, easy terms being imposed on their submission. Soon after, Cæsar left, but early in the following summer he again invaded these shores with five legions and two thousand cavalry.