The RMS Titanic (Royal Mail Steamer Titanic) was a British transatlantic liner owned by the White Star Line. Its construction started in Belfast 1909 and was completed in 1911. Its home port was located in Liverpool, United-Kingdom.
The Titanic was the most luxurious and the biggest liner that was ever built at the time of its launching.

During its maiden voyage from Southampton to New-York, the liner hit an iceberg on its starboard side on April 14th, 1912 at 11.40 pm and sank on April 15th 1912 at 2.20 am, offshore Newfoundland. Around 1,500 people died in the accident, it is one of the greatest maritime catastrophes in peace time and a record at the time.
The disaster appeared as a sock to the international community. Indeed, the sinking was an evidence that men and their technological feats could not compete with forces of nature. It also made light of technical deficiencies at the time: modern analyses show that the steel used to build the hull but even more so the steel used for the rivets except for the central hull, was too fragile. Indeed, it seems that it was made up of too much sulfur and not enough manganese.

The other element explaining the sinking of the liner is the offhand and carefree attitude of those who chose the route and the speed. Their behavior was based on the fact their were overconfident in the liner, thought to be unsinkable.
All these factors and elements contributed in the sinking of the Titanic.