There has never been universal agreement over the number of lives lost in the sinking of the Titanic. Beginning with the first news reports of the disaster, inquirers have found it unwise to trust the original passenger and crew lists, which were rendered inaccurate by such factors as misspellings, omissions, aliases, and failure to count musicians and other contracted employees as either passenger or crew. Agreement was made more difficult by the international nature of the disaster, essentially involving a British-registered liner under American ownership that carried more than 2,000 people of many nationalities. Immediately after the sinking, official inquiries were conducted by a special committee of the U.S. Senate (which claimed an interest in the matter on the grounds of American lives lost) and the British Board of Trade (under whose regulations the Titanic operated). The figures established by these hearings are as follows:

U.S. Senate committee: 1,517 lives lost
British Board of Trade: 1,503 lives lost

Confusion over the above figures was immediately aggravated by the official reports of these bodies to the U.S. Senate and the British Parliament; these reports revised the numbers to 1,500 and 1,490, respectively. The figures have been revised, officially and unofficially, so many more times since 1912 that most researchers and historians concede that they will never know how many people died on the Titanic.