...ns marched 450 leagues in twenty- three days. In 1800 Macdonald marched forty miles in a single day, crossing rivers and climbing mountains. Canal, after most extraordinary efforts at the battle of Salamanca , retreated forty miles in twelve hours. In 1814 Napoleon marched his army, for the purpose of succoring Paris, seventy-five miles in thirty-six hours. Gen. Crawford, in Spain, marched three thousand ...