Uranus takes 84 years for one orbit of the sun. It was discovered by William Herschel in 1781, 244 years ago. In 8 years it will have completed three orbits and will be in the same place in the sky as when he discovered it.
Four orbits ago (one before its discovery) takes us back to 1697 and the reign of Peter the Great. His great war with Sweden began in 1700.