Tech & Science · 1951
Dawn of Atomic Power and Commercial Computing
The year 1951 marked a monumental shift as atomic energy produced electricity for the very first time and early mainframes entered commercial production. From biological breakthroughs to revolutionary long-distance telecommunications, science laid the groundwork for the modern digital age.
- June 14, 1951 | United States
UNIVAC I Mainframe Computer
The United States Census Bureau officially accepts delivery of UNIVAC I, ushering in the era of commercial electronic computing.
- December 20, 1951 | Idaho, USA
First Nuclear-Generated Electricity
The Experimental Breeder Reactor I successfully illuminates four light bulbs, proving that nuclear energy can generate usable electric power.
- February 1951 | Johns Hopkins Hospital
Isolation of HeLa Immortal Cell Line
Researchers isolate tissue from Henrietta Lacks to culture HeLa, creating the world's first immortal human cell line for medical study.
- October 15, 1951 | Mexico City
Synthesis of Norethindrone
Chemist Carl Djerassi synthesizes the key synthetic progestin norethindrone, paving the way for the oral contraceptive pill.
- February 1951 | Manchester, UK
Ferranti Mark 1 Delivery
Manchester University receives the Ferranti Mark 1, recognized as the world's first commercially available general-purpose electronic computer.
- March 25, 1951 | Harvard University
Detection of 21-Centimeter Hydrogen Line
Physicists Harold Ewen and Edward Purcell detect radio emissions from cosmic hydrogen, revolutionizing radio astronomy's view of the Milky Way.
- November 10, 1951 | Englewood, NJ
Transcontinental Direct Distance Dialing
Englewood Mayor M. Leslie Denning dials California directly without an operator, launching coast-to-coast automated telephone service.
- November 29, 1951 | London, UK
LEO I Business Computer Application
J. Lyons and Co. runs a bakery valuation job on the LEO I computer, completing the world's first routine business data processing task.
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