Before revision: In 1972 Philpott and Castle developed the first partograph, by utilizing friedmar 's cervicograph, and adding the relationship of the presenting part to the maternal pelvis.
After revision: In 1972 Philpott and Castle developed the first partograph, by utilizing Friedman, working in Rhodesia (now Zimbabwe), 's cervicograph, and adding the relationship of the presenting part to the maternal pelvis.