Oleg Vladimirovich Penkovsky, codenamed Hero and Yoga was a Soviet military intelligence (GRU) colonel during the late 1950s and early 1960s. Penkovsky informed the United States and the United Kingdom about Soviet military secrets, including the appearance and footprint of Soviet intermediate-range ballistic missile installations and the weakness of the Soviet intercontinental ballistic missile (ICBM) program. This information was decisive in allowing the US to recognize that the Soviets were placing missiles in Cuba before most of them were operational. It also gave US President John F. Kennedy, during the Cuban Missile Crisis that followed, valuable information about Soviet weakness that allowed him to face down Soviet leader Nikita Khrushchev and resolve the crisis without a nuclear war.
Oleg Penkovsky, Russian colonel (died 1963)
On April 23, in the year 1919, Oleg Penkovsky, Russian colonel (died 1963). This event is recorded as a Notable Births event in the history of April 23, one of 445 recorded events on this date across all of history.
1 notable person is associated with this event, including Oleg Penkovsky. Learn more below.
Key Facts
- This event took place on April 23, 1919 (AD era).
- It is categorised as a Notable Births event in recorded history.
- Referenced in 1 Wikipedia article.
- 1 notable person is recorded as involved in or associated with this event.
- Wikipedia source last updated on 7 March 2026.
On This Date in History 445
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
People Involved
More on April 23
Bobby Rosengarden, American drummer and bandleader (died 2007)
Robert Marshall Rosengarden was an American jazz drummer, percussionist and bandleader. A native of Elgin, Illinois, United States, he played on many recordings and in television …
Bobby Rosengarden, American drummer and bandleader (died 2007)
Dolph Briscoe, American lieutenant and politician, 41st Governor of Texas (died 2010)
Dolph Briscoe Jr. was an American rancher and businessman from Uvalde, Texas, who was the 41st governor of Texas between 1973 and 1979. He was a conservative Democrat.
Dolph Briscoe, American lieutenant and politician, 41st Governor of Texas (died 2010)
Avram Davidson, American soldier and author (died 1993)
Avram Davidson was an American writer of fantasy fiction, science fiction, and crime fiction, as well as the author of many stories that do not fit into a genre niche. He won a Hu…
Avram Davidson, American soldier and author (died 1993)
Judy Agnew, Second Lady of the United States (died 2012)
Elinor Isabel "Judy" Agnew was the second lady of the United States from 1969 to 1973. She was the wife of the 39th vice president of the United States, Spiro Agnew, who had previ…
Judy Agnew, Second Lady of the United States (died 2012)
Cleto Bellucci, Italian archbishop (died 2013)
Cleto Bellucci was an Italian Prelate of Roman Catholic Church.
Cleto Bellucci, Italian archbishop (died 2013)
Janet Blair, American actress and singer (died 2007)
Janet Blair was an American big-band singer who later became a popular film and television actress.
Janet Blair, American actress and singer (died 2007)
Comments 0
Sign in to join the discussion.