Two and a half hours after striking an iceberg in the North Atlantic Ocean on its maiden voyage, the British passenger liner RMS Titanic sinks, dragging 1,517 people to their deaths. The number of dead amount to more than fifty percent of the passengers, due mainly to the fact the liner was not equipped with enough lifeboats.

African-American baseball player Jackie Robinson officially breaks Major League Baseball’s color line when he debuts for the Brooklyn Dodgers. Several dark skinned men had played professional baseball around the beginning of the twentieth century, but Robinson was the first to overcome the official segregation policy called—ironically, in retrospect—the “gentleman’s agreement.”

Exacerbated by a long drought combined with poor conservation techniques that caused excessive soil erosion on farmlands, a huge dust storm known as Black Sunday rages across Texas, Oklahoma, and several other states, literally turning day to night and redistributing an estimated 300,000 tons of topsoil.

In the U.S., CIA director Allen Dulles launches a program codenamed MK-ULTRA, which involves the surreptitious use of drugs such as LSD to manipulate individual mental states and to alter brain function. The specific goals of the program are multifold, but focus on drugging world leaders in order to discredit them, developing a truth serum, and making people highly susceptible to suggestion. All of this is top secret, and files relating to MK-ULTRA’s existence are destroyed in 1973, but the truth about the program still emerges in the mid-seventies after a congressional investigation.

U.S. President Franklin D. Roosevelt dies of a cerebral hemorrhage while sitting for a portrait in the White House. After a White House funeral on April 14, Roosevelt’s body is transported by train to his hometown of Hyde Park, New York, and on April 15 he is buried in the rose garden of the Roosevelt family home.