
Patrick Riley
Encyclopædia Britannica Editor
Patrick Riley is the Senior Illustrator for Encyclopædia Britannica. He has worked at Britannica since 2007.
Primary Contributions (16)

The Manhattan Project had its origins in 1939, when U.S. scientists urged President Franklin D. Roosevelt to establish a program to study the potential military use of fission; $6,000 was appropriated for the task. By 1942 the project was code-named Manhattan, for the site of Columbia University,…
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