Space-time

Minkowski demonstrated that relativity requires time to be considered as a fourth dimension, combining space and time into space-time. Einstein later incorporated this concept into his theories to address gravitational interactions.
 Hermann Minkowski Germany 1907 Space-time

Minkowski demonstrated that relativity requires time to be considered as a fourth dimension, combining space and time into space-time. Einstein later incorporated this concept into his theories to address gravitational interactions.