Nobel Prize
Receives the Nobel Prize in Physics for inventing and developing the cyclotron and for results obtained with artificially produced radioactive elements.
Historical biography archive · Updated 2026-11-03
Ernest Orlando Lawrence Biography and Timeline
Follow Ernest Orlando Lawrence through 4 dated historical records for United States of America.
Ernest Orlando Lawrence, historical timeline
A chronological timeline drawn from matching World History Database records.
4Distinct records
1 of 1Page
1939–1945Years on this page
1939
1942
Electromagnetic Pilot Plant Recommendation
The S-1 Executive Committee recommends a Tennessee pilot plant based on Lawrence's electromagnetic isotope-separation work.
1943
First Alpha Unit Operation
The first Alpha electromagnetic-separation unit at Y-12 begins operation as Oak Ridge expands into full industrial production.
1945
Y-12 Two Hundred Grams Daily Output
Y-12 production rises to roughly 204 grams per day of uranium enriched to about eighty percent uranium-235.
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.