The Titanic was in fact called "the unsinkable ship".
The Titanic was the biggest and most luxurious passenger ship, whose construction finished in 1909. It was designed to include the latest technologies in terms of safety. Its double-platted bottom was divided in compartments, and each compartment had doors that would close if water had entered inside, so that the flooding could be isolated in a single section and the ship could remain afloat.
The answer is referendum. Usually this is a vote that comes from the people themselves. The result mostly leads to changes in laws. The fact that so many referendums have held in several countries from past to present shows how important it is that people take part in such developments.
The answers number 1,French and Spanish explorers differed most in terms of their relationships with the American Indians that have encountered or met.