Microsoft co-founder Paul Allen bought a copy of Einstein's infamous 1939 letter to Roosevelt in 2002. It just sold at ...

However, the Manhattan Project truly took off after Nobel Laureate Albert Einstein penned a letter to US President Franklin D ...

The scientist warned the US president that Germany might be able to develop an atomic weapon A letter from Albert Einstein ...

Albert Einstein's 1939 letter to President Franklin D. Roosevelt, warning of Nazi nuclear advancements and urging U.S. atomic ...

Though Einstein was never a part of the Manhattan Project — the US Army Intelligence Office denied him the necessary security clearance — the Nobel Prize winner regretted his role anyway.

Albert Einstein's influence changed the face of war and the world when he chose to write to the President of the United States.

Written in the summer of 1939, the letter warned that Germany could develop 'extremely powerful bombs' using uranium and urged the US President to 'speed up' the country's work on the subject ...

Co-signed by physicist Leo Szilard, the letter was pivotal in initiating the Manhattan Project. Although Einstein later regretted his role in the atomic bomb's development, the letter remains a ...