Henryk Zygalski Biography

Historical biography and chronological timeline for Henryk Zygalski, based on 5 World History Database records associated with Poland.

5 records1932–19393 events2 places

Chronological biography

1932

Enigma MachineSeptember 1932

Warfare / World War, 2nd

Joins the Polish Cipher Bureau team attacking German Enigma traffic.

1938

Perforated-Sheet Cryptanalysis1938

Science / Mathematics · Cryptologist and Mathematician · Warsaw

Creates a manual technique that remains useful after German cipher procedures change.

Zygalski Sheets1938

Science / Mathematics · Cryptologist and Mathematician · Warsaw

Develops perforated sheets for identifying Enigma message settings.

Enigma MachineOctober 1938

Warfare / World War, 2nd

Designs perforated sheets that can identify Enigma settings despite increasingly complex plugboard connections.

1939

Enigma Machine25 July 1939

Warfare / World War, 2nd · Pyry

Demonstrates the perforated-sheet method to British and French cryptanalysts at the Pyry meeting.

Titles and roles

Cryptologist and Mathematician

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.