Question

the discovery of which principle made the accurate measurement of time possible

Answer 1

The principle of oscillation has made time measurement accurately possible. Familiar examples include swinging pendulum and AC power.

Time has referred as fourth dimension and along with three spatial dimensions.

There are two laws regarding time such as Newton law, and the time law described by Gottfried Leibniz and Immanuel Kant.

Answer 2

The discovery of the principal of oscillation made it easier to measure time accurately