On this date in 1915, the 1st Tunneling Company was formed at Petawawa and the 2nd Tunneling Company was formed at Calgary.

On this date in 1916, Lt W.B. Pennock was instrumental in producing a camouflage model of tank to confuse the enemy.

On this date in 1944, the Gothic Line in Italy had been broken at the cost of 41 officers and men of the Royal Canadian Engineers..

On this date in 1941, Lt J.M.S. Patten and Capt D.W. Cunnington removed an unexploded bomb from the Hawker Hurricane plant. For this action they were subsequently awarded the George Cross and the George Medal, respectively.

On this date in 1967, 56 Field Engineer Squadron completed the restoration of the Quidi Vidi Battery as a Centennial project.

On this date in 1918, the formation of the Brigade Forward Water Supply Sections Canadian Engineers was authorized.

On this date in 1916, following the advance after the battle of Courcelette, the Engineers were fully committed in preparing defensive works, tramways, and trenches for Canadian forces.

On this date in 1943, a senior staff officer commenting on the role of the engineers said: "What this division needs is three brigades of Sappers and three companies of Infantry.

On this date in 1944, Headquarters RCE 1st Canadian Corp Troops had under command 3100 all ranks, belonging to 23 different units.

On this date in 1969, the Canadian Military Engineers were assigned the responsibility to train and maintain Combat Diving resources for the Army.