Late in the evening on April 14, 1912, the R.M.S. Titanic hit an iceberg and sank into the icy waters of the North Atlantic, killing 1,517 of the 2,223 passengers and crew members aboard. To make sense of this tragic and seemingly random disaster, people over the past century have told stories of ominous signs of bad luck that were supposedly ignored beforehand, or spun elaborate conspiracy theories to explain the “real” reason it sank. Today, we'll be discussing a few of these logical and illogical theories.