Egyptian drill commands demanded every action be completed within half a second.

Evidence

All the movements of the soldiers, however small, however minute, were punctuated by the command shouts and performed according to their rhythms. “The single shout, although constituting one command, has to be divided into sections so that the soldiers can grasp the complexity of the movement and act in unison. Every single action should be performed within half a second.” — Khaled Fahmy, All the Pasha_s Men_ Mehmed Ali, his…, 739

Categorization

• CANDY: The requirement that each drill action take under half a second is a striking, concrete detail.