It was on Sunday, 18th June, 1815, that the famous battle of Waterloo was fought. The British army of 67,600 men and the French army of 72,000 lay on the open field the night before that memorable struggle. It had been a wet and stormy night; at dawn the rain was falling heavily, the ground was saturated, and the troops in the rival armies were thoroughly drenched. About nine o'clock it cleared up, but on account of the rainfall no movement was made by the French till towards twelve o'clock.