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Polish mathematicians & code breakers made the first breakthroughs against Nazi Germany's Enigma code.......

1942: Jerzy Różycki, Polish Cipher Bureau mathematician, died.

Saturday, January 9, 2021
1942: Jerzy Różycki, Polish Cipher Bureau mathematician, died.

9 January 1942: Jerzy Różycki, Polish Cipher Bureau mathematician who helped break ENIGMA, died when the M/S "Lamoriciere," in which he was crossing the Mediterranean in from France to Algeria, sunk near the Balearic Isles in a storm, possibly after hitting a mine.

In 1929, while still a student, Różycki, proficient in German, was one of twenty-odd Poznań University mathematics students who accepted an invitation to attend a secret cryptology course organized at a nearby military installation by the Polish General Staff's Cipher Bureau, headquartered in Warsaw.

From September 1932 Różycki served as a civilian cryptologist with the Polish General Staff's Cipher Bureau, housed till 1937 in Warsaw's Saxon Palace. He worked there together with fellow Poznań University mathematics alumni and Cipher Bureau cryptology-course graduates Marian Rejewski and Henryk Zygalski.

The deciphering of the mathematical basis of the Enigma, and the construction of a copy of the coding machine were the work of Polish mathematicians from the General Staff Code Bureau 4 (BS4): Marian Rejewski, Jerzy Różycki and Henryk Zygalski, who broke the Enigma secret in 1932 and started to read the German secret dispatches. Based on their research, Warsaw based AVA company built several copies of the Enigma machine in 1933.

After Rejewski had reconstructed the German military Enigma machine in December 1932, Różycki and Zygalski likewise worked at ongoing development of methods and equipment to exploit Enigma decryption as a source of intelligence. Różycki invented the "clock" method, which sometimes made it possible to determine which of the machine's rotors was at the far right, that is, in the position where the rotor always revolved at every depression of a key.

Learn more about the success of the Polish codebreakers in the link located below.

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The NCMF directly supports the National Cryptologic Museum (NCM), the first public museum in the U.S. Intelligence Community. We think you will agree it is truly a "museum like no other."

Located adjacent to the National Security Agency (NSA) in Maryland, the NCM houses a priceless collection of artifacts that represent our Nation's history in code making and code breaking, as well as a world class library of cryptologic media. The NCMF acquires the best artifacts for the NCM and supports new educational and interactive exhibits.

The NCMF provides exceptional cryptologic programs throughout the year, encourages young minds to explore cryptology and innovation through valued awards, and hosts educational, cryptology-related exhibits at various community events.

As part of the Foundation's partnership with NSA to build the Cyber Center for Education and Innovation - Home of the National Cryptologic Museum (CCEI-NCM), the NCMF also serves as a leader in the field of cybersecurity - striving to provide the best in educational resources and programs.

The NCMF and NCM share a joint three-fold mission to Educate, Stimulate, and Commemorate. Learn more about our MISSION.