Premise: The Vorontsov Lighthouse (Ukrainian: Воронцовський маяк , Russian: Воронцовский маяк ) is a famous red-and-white, 27.2 metre landmark in the Black Sea port of Odessa, Ukraine. It is named after Prince Mikhail Semyonovich Vorontsov, one of the governors-general of the Odessa region.
Hypothesis: Sailors on the Black Sea needed a light house to guide them.