Private papers from aPanama law firm were made public and revealed how wealthy clients concealed their wealth and avoided paying taxes; the “Panama Papers” represented one of the biggest leaks of confidential data.

Federal agents in Montana apprehendedTed Kaczynski, an Americanterrorist known as the “Unabomber,” who had killed 3 persons and injured more than 20 with explosives sent through the U.S.postal system.Ted Kaczynski might have been inspired by The Secret Agent. Read about that book and others tied to terrible crimes

The first handheldmobile telephone call was made by an employee ofMotorola, who calledAT&T'sBell Laboratories.Sort fact from fiction in our quiz about gadgets and technology

At an event for theMemphis sanitation workers' strike, Americancivil rights activistMartin Luther King, Jr., delivered hisMountaintop Speech; the following day he wasassassinated.Take our quiz about Martin Luther King, Jr

American comedian and actorEddie Murphy was born in Brooklyn, New York.Sort fact from fiction in our film quiz

The Japanese army generalHomma Masaharu was executed for forcing theBataan Death March.Test your knowledge of World War II

Helmut Kohl, who served as chancellor ofWest Germany (1982–90) and of reunifiedGermany (1990–98), was born in Ludwigshafen am Rhein, Germany.How much do you know about German history?

American stage and motion-picture actorMarlon Brando was born in Omaha, Nebraska.Take our quiz about movie actors

American singer and actressDoris Day, whose performances in movie musicals of the 1950s and sex comedies of the early 1960s made her a leading Hollywood star, was born in Cincinnati, Ohio.Take our quiz about A-list actors

Joseph Stalin became secretary-general of theCommunist Party of the Soviet Union, a position that provided the power base for his dictatorship.How much do you know about Russian history?

While adjusting a picture on the wall of his home inSt. Joseph, Missouri, American outlawJesse James was shot and killed by Robert Ford.Test your knowledge of famous outlaws

Sofia, liberated from theOttoman Empire by Russian troops, was named the capital ofBulgaria.Sort fact from fiction in our quiz about European history

ThePony Express mail delivery system, which used continuous horse-and-rider relays along a 1,800-mile (2,900-km) route betweenSt. Joseph, Missouri, andSacramento, California, was launched in the United States.Test your knowledge of U.S. history