simultaneousness

And to the whole bright spectacle was added the impressiveness of unfaltering rhythm and simultaneousness of movement.

Or does this simultaneousness exist without any direct proportion between the amount of unity and essence?

They got to their ground, with the simultaneousness appointed, on the eleventh or twelfth day.

"Paint the simultaneousness, never mind the legs and arms," is the golden rule of the Futurists.

We see often in the world's history a simultaneousness in the regeneration of thought.