In the 1800s the dawning of the machine age and the industrial revolution led to advancements in new and more efficient modes of warfare, in the form of walking fighting machines familiarly known as steam rigs. By The end of the century the steam rig had advanced from primitive, ungainly one-man contraptions to powerful yet elegant striding land vessels, manned by daredevil crews of specialists controlling its various parts, under orders from a commander and pilot in the headcap. All fueled by stokers shoveling increasingly valuable coal.