<div class="description">
<ul><li><b>Scope and content:</b>  This photograph depicts Enrico Fermi standing at a blackboard with mathematical formulas and a geometrical drawing.  The location and date of the photograph are unknown, although it was likely taken in or near Chicago, circa 1950.  The photograph has this caption:  "Dr. Enrico Fermi (1901-1954) leader of the group of scientists who succeeded in initiating the first man-made nuclear chain reaction on December 2, 1942."</li></ul></div>
<div class="fn value">
Unknown author<span style="display: none;">Unknown author</span> or not provided</div>
1950<div style="display: none;">date QS:P571,+1950-00-00T00:00:00Z/9</div>
<a href="https://en.wikipedia.org/wiki/U.S._National_Archives_and_Records_Administration" class="extiw" title="en:U.S. National Archives and Records Administration">U.S. National Archives and Records Administration</a>