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Historical person

Leo Szilard Biography

Historical biography and chronological timeline for Leo Szilard, based on 3 World History Database records associated with Hungary.

3 records1898–19423 events2 places

Chronological biography

1898

Birth of Leo Szilard1898
Science / Physics

Birth of Leo Szilard, researched nuclear fission

1939

Einstein-Szilard Letter2 August 1939
Science / Physics · Physicist · Long Island

Drafts a letter warning Roosevelt about uranium weapons.

1942

First Nuclear Chain Reaction2 December 1942
Science / Physics · Chicago

A uranium and graphite pile achieves the first self-sustaining nuclear chain reaction.

Titles and roles

Physicist

Record provenance

This biography is assembled from World History Database records filtered by country and personal-name fields. Exact duplicate display records are removed. The database is an index rather than a complete narrative biography; formal research should verify entries against relevant primary or specialist sources.