useless trivia: What Word Means: A Lighthouse?

Questions

Trivia : In the 1855 Russian War, what were used to transport Torpedos?

Trivia : In the 9th century which city had several thousand bookstores?

Trivia : In the Gregorian calendar after 10,000 years by how many days will the calendar be wrong by ?

Trivia : In the kama-sutra the art of which game is recommened for women to study ?

Trivia : In the period 978-1016 England was ruled by which "Unready" king?