Jan Kowalewski

Officer of the Polish Army, cryptographer (1892-1965) · United Kingdom · On the map · Writers · Died at 73

Lt. Col. Jan Kowalewski was a Polish cryptologist, intelligence officer, engineer, journalist, military commander, and creator and first head of the Polish Cipher Bureau.

Jan Kowalewski is read about 40 times a day, in 8 languages.

A typical day, 30 days to 22 June 2026

The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.

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A life in dates

2012Grand Cross of the Order of Polonia RestitutaAward1965Died31 October 19651933Gold Cross of MeritAward1932Cross of Independence with SwordsAward1930Officer of the Order of Polonia RestitutaAward1926Order of the Rising Sun, 5th classAward1922Silver Cross of the Virtuti MilitariAward1892Born23 October 1892

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Media & music

Photos 1

Jan Kowalewski

Awards

Grand Cross of the Order of Polonia Restituta2012

Gold Cross of Merit1933

Cross of Independence with Swords1932

Officer of the Order of Polonia Restituta1930

Order of the Rising Sun, 5th class1926

Silver Cross of the Virtuti Militari1922

Cross of Valour

Cross on the Silesian Ribbon of Valor and Merit

Commander of the Order of the Crown (Romania)

Knight Officer of the Order of the Crown (Romania)

Knight of the French Order of Academic Palms

Badge "Armored Sign"

About this person

He recruited a large staff of cryptologists who broke Soviet military codes and ciphers during the Polish-Soviet War, enabling Poland to weather the war and achieve victory in the 1920 Battle of Warsaw.

Country

United Kingdom

Writers from the United Kingdom 6

T. E. B. Clarke45.5 of 100

Olaf Kirkpatrick Kruuse Caroe45.5 of 100 Nicola Shulman45.6 of 100 Keith Roberts45.5 of 100

Frances Wood45.6 of 100

Robert Rankin45.5 of 100