The phrase "how many royal caribbean cruise ships have sunk" is a question seeking numerical data about the number of vessels owned by the company Royal Caribbean that have experienced sinking incidents. For instance, if five ships operated by Royal Caribbean have met this fate, the answer to the question would be "five."
Determining the number of sunken Royal Caribbean cruise ships is essential for assessing the company's safety record, evaluating insurance liabilities, and understanding the history of maritime disasters. Historically, the sinking of the RMS Titanic in 1912 brought about significant changes in shipbuilding regulations and safety protocols.