90 Miles From Tyranny : August 17, 1971: The Stanford Experiments Begin

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Monday, August 17, 2026

August 17, 1971: The Stanford Experiments Begin








In August 1971, psychologist Philip Zimbardo launched the Stanford Prison Experiment in a mock prison in the basement of Stanford University's Jordan Hall. [1, 2]
Twenty-four healthy male college students were split into guards and prisoners. The study ended after just six days due to severe emotional trauma and escalating guard brutality. [1, 2, 3, 4]

Overview and Setup
  • Dates: August 14–21, 1971
  • Location: Basement of Jordan Hall at Stanford University
  • Lead Researcher: Dr. Philip Zimbardo
  • Participants: 24 male college students selected after psychological screening
  • Roles: Randomly assigned as either prisoners or guards [1, 2]
Escalation and Termination
  • Real Arrests: Prisoners were unexpectedly arrested at their homes by local Palo Alto police officers.
  • Dehumanization: Guards wore uniforms and sunglasses; prisoners wore numbered smocks and stocking caps.
  • Rapid Abuse: Guards enforced harsh rules and psychological torture, leading to early emotional breakdowns among inmates.
  • Early Shutdown: Psychologist Christina Maslach protested the conditions, prompting Zimbardo to halt the study on the sixth day. [1, 2, 3, 4]

Scientific Controversy
  • Ethical Criticism: Modern psychologists heavily criticize the study's lack of scientific controls and active experimenter bias.
  • Demand Characteristics: Critics argue guards acted brutally because researchers nudged them into specific behaviors rather than natural reactions. [1, 2, 3]
More This Day In History:

June 26, 1948, the United States launched the Berlin Airlift, known as "Operation Vittles"
June 28, 1914: Archduke Franz Ferdinand Is Assassinated
June 30, 1908 The Tunguska explosion (or Tunguska event)
July 1, 1863: The Battle Of Gettysburg Begins
July 2, 1937 Amelia Earhart disappears
July 3, 1775: George Washington Takes Command Of The Continental Army
July 4, 1776: The Declaration Of Independence Is AdoptedJuly 13, 1949: Pope Pius XII excommunicates all communist Catholics
July 17, 1918: The Romanov Family Is Executed By Communists
July 19, 1799: The Rosetta Stone Is Discovered
July 21, 1861: The First Battle of Bull Run
July 22, 1298: William Wallace Is Defeated At The Battle Of Falkirk
July 25, 1898 - U.S. forces invade Puerto Rico
July 26, 1847 - Liberia proclaimed its independence: Wakanda Realized.
July 29, 1588: The Spanish Armada Is Defeated
August 3, 1492: Christopher Columbus Sets Sail For The New World
August 4, 1790: Alexander Hamilton creates Coast Guard to intercept smugglers that avoided Tariffs
August 5, 1620: The Mayflower Makes Its Failed First Attempt To Depart England
August 12, 1898: Armistice ends the Spanish-American War
August 13, 1521: The Aztec Capital Falls To Hernán Cortés
August 14, 1945: Japan’s surrender made public on Victory over Japan Day, (V-J Day).
August 15, 1914: The Panama Canal officially opened
August 16, 1858: The First Transatlantic Telegraph Is Sent

2 comments:

Anonymous said...

You left out the part about how like most experiments in psychology, the subjects were coached by the researchers to achieve the observations they were seeking. Some guards were not aggressive enough and researchers admonished them to get into the role better. In other words, the process was flawed and results were achieved because the subjects were told how to behave.

--Generic

Anonymous said...

(Slapping my own forehead). Oops, you did clearly say that.

--Generic