“ This rank is almost universal in armies. In the 16th and 17th centuries there were corporals but no sergeants in the cavalry, and this custom is preserved in the three regiments of British household cavalry, the rank of sergeant being replaced by that of “corporal of horse,” and that of sergeant-major by “corporal-major.” In the 16th and early 17th centuries the title “corporal of the field” was often given to a superior officer who acted as a staff-officer to the sergeant-major-general. ”