Dynamic Directory - May 15, 2024

Learn the story behind one of the most-famous photos of the U-boat War: The attack of U-569.

On January 6, 1838, Samuel Morse successfully tests an electrical telegraph. So why did it take years longer to send the first message?

The last days of the Romanov family begins with these words: ''At midnight, Yakov Yurovsky, the leader of the executioners, came up the stairs to awaken the family.''

Although he was a pacifist, who despised war, Albert Einstein also realized that if Hitler and his scientists were the first to discover how to build nuclear weapons, the world would be in even-worse shape.

When technicians are checking whether the O-rings are properly seated, on the space shuttles Solid Rocket Motor, they check for potential leaks.

Major Henry Reed Rathbone and his fiancé, Clara Harris, attended a play with Abraham and Mary Lincoln on the night the President was shot. Booth lunged at Rathbone with a knife, injuring but not killing him. Learn how the assassination claimed more victims, years later, when Rathbone himself lost his mind.

In 1991, the first of two graves containing the suspected remains of Tsar Nicholas II and members of his family and household were officially opened for examination.

The Alps stretch across southern Europe, from France (in the west) to northern Slovenia and Austria (in the east).

This image depicts the second page of a letter - from Albert Einstein to President Roosevelt - which changed the world.

During the era of shuttle missions, each shuttle launch included two solid rocket boosters (SRB) which helped to fuel the first minutes of flight.

This image depicts members of the Uralsoveta (Ural Soviet) who were in power when the Romanov family was murdered.

NASA's Solid Rocket Booster (SRB) had to be redesigned, after its design flaws caused the loss of Challenger and its seven astronauts.

On August 16, 1896 prospectors find gold in Alaska. The Trump fortune got its start as a result.

Sri Lanka - an island in the Indian Ocean, off the southern coast of the Indian subcontinent - is a place of lush beauty and rich history.

Elizabeth Shoumatoff (1888-1980) was painting President Roosevelt's portrait at his Little White House, in Warm Springs, on the 12th of April, 1945. The President said he had a headache; soon after he was dead.

On the 17th of July, 1998, Tsar Nicholas II, his wife, three of his children and four of the family's helpers were buried eighty years after they were assassinated on orders of the Bolsheviks.

This drawing depicts a cross section of the Solid Rocket Motor which was in use at the time of the Challenger disaster.

Eroded O-rings caused the loss of the space shuttle Challenger. This image depicts how hot gasses were not kept away from the shuttle's fuel during launch.

As Alan Turing and his Bletchly Park colleagues worked feverishly to break the Enigma code, they caught a break when the Royal Navy captured U-110 on May 9, 1941. Onboard was a working Enigma machine and secret codes for the following month. Initially towing the disabled U-boat to Iceland, the crew with the secret treasure was redirected to Scotland.