1861 - Harland & Wolff shipbuilders established in Belfast, Ireland.
1868 - Oceanic Steam Navigation Company, more commonly known as the White Star Line, founded by Thomas Ismay.
1902 - JP Morgan purchases White Star Line.
1907 - J. Bruce Ismay (White Star Line) and Lord Pirrie (Harland & Wolff) decide to design three new steamships.
1908 - Final designs for sister ships Olympic and Titanic are approved by White Star Line directors.
1908 - December 9th - Olympic's keel is laid by Harland & Wolff.
1909 - March 31st - Titanic's keel is laid.
1910 - October 19th - Titanic's plating is finished.
1910 - October 20th - Olympic's hull is launched.
1911 - May 31st - Titanic's hull is launched.
1911 - June 14th - Olympic sets out on her maiden voyage, with Captain Edward J. Smith.
1911 - November 30th - Britannic's keel is laid.
1912 - March 31st - Titanic is completely outfitted.
1912 - April 2nd - Titanic undergoes one-day sea trial.
1912 - April 3rd - Titanic arrives in Southampton from Belfast.
1912 - April 10th - Titanic departs Southampton on her maiden voyage to New York City at 11:45 a.m., with Captain Edward J. Smith.
1912 - April 10th - Titanic arrives at Cherbourg, France, at about 6:00 p.m.
1912 - April 11th - Titanic arrives at Queenstown (Cobh), Ireland around 11:30 a.m.
1912 - April 14th - Titanic receives ice warnings via the Marconi wireless.
1912 - April 14th - 11:40 p.m., Titanic hits an iceberg, causing irreparable damage to the hull.
1912 - April 15th - 12:15 a.m., Wireless operators send out the distress call "CQD." Cunard liner Carpathia responds.
1912 - April 15th - 12:30 a.m., Captain Smith orders the lifeboats filled with women and children first.
1912 - April 15th - 1:40 a.m., The last lifeboat is lowered on the starboard side.
1912 - April 15th - 1:50 a.m., Titanic sent the last wireless communication to Olympic.
1912 - April 15th - 2:05 a.m., The last lifeboat is lowered on the port side.
1912 - April 15th - 2:20 a.m., Titanic sinks with over 1,500 souls on board.
1912 - April 15th - 4:10 a.m., Carpathia begins to rescue survivors from lifeboats.
1912 - April 15th - 8:50 a.m., Carpathia leaves the site of the sinking with 705 survivors on board.
1912 - April 18th - Carpathia arrives in New York.
1914 - Britannic is launched.
1916 - November 12th - Britannic is sunk by a German mine.
1935 - Olympic is retired.
1955 - Walter Lord's book A Night to Remember is published.
1958 - The film version of A Night to Remember is released.
1975 - Wreckage of Britannic is discovered by Jacques Cousteau.
1985 - September 1st - Wreckage of Titanic is discovered by Robert Ballard.
1993 - Removal of artifacts from Titanic begins.
1997 - James Cameron's Titanic is released in theaters.
2012 - Commemoration of the 100th Anniversary of the launch and sinking of Titanic.
National Geographic - Photo Gallery: Discovering the Titanic