Time+hath+no+meaning

Catharine II in 1700ad once ordered that a Snow Drop that had bloomed early inSt. Petersburgnot to be plucked and that a sentry be posted on guard to protect it.
 * Time hath no meaning **

200 years later a sentry was still assigned to the spot ( Not the same one )

No one remembered why and finally the Emperor in early 1900 ordered that the reason be found, and was.