Parnikee

Parnikee was a male Denobulan who lived prior to the 22nd century. Parnikee is credited as the Denobulan who invented the warp drive engine, and led the first Denobulan exploratory vessel.

He had also deduced what became known as Parnikee's Theorem, similar to the Hubble Constant and T'ronna's third equation, explaining the rate at which the universe is expanding. As well as the existence of parallel universes, in which things and places are the same but different.