Birth of Jerome David Salinger
Birth of Jerome David Salinger
Permanent historical records · Updated 2026-11-03
1920 in United States of America
Explore 22 historical events and records for United States of America in 1920.
Historical records for United States of America in 1920
Sorted by month and day. Records with no month are shown last. Showing 22 of 22 unique records.
22Unique records
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22Named events on this page
13Named people on this page
6Places on this page
January
Birth of William Egan Colby
Birth of William Egan Colby
February
Transportation Act
The Act returns railroads to private operation and strengthens federal rate regulation.
March
United States Non-Membership
The Senate rejects League membership after the Versailles dispute.
May
Ether and Relativity Lecture
Delivers the lecture Ether and the Theory of Relativity, redefining the concept in gravitational terms.
Ether and Relativity Leiden Address
Delivers his Leiden inaugural lecture on ether and relativity, arguing that general relativity permits a physical spacetime structure without a mechanical luminiferous ether.
September
Bad Nauheim Relativity Debate
Publicly debates critics including Philipp Lenard at the German scientists' meeting in Bad Nauheim, defending the physical basis and interpretation of relativity.
October
Birth of Walter Matthau
Birth of Walter Matthau
Leiden Special Professorship
Begins official duties as special professor at Leiden University.
Other events (month unknown)
Anti-Relativity Campaign
Publicly confronts organized attacks on relativity amid growing political and antisemitic hostility.
Colour of the Nebulous Stars
Edwin Hubble and Frederick H. Seares publish a study of the colours of nebulous stars, using photometric evidence to investigate stars associated with nebular material.
French Battlefield Visit
Cather visited France and a relative's wartime grave while preparing a war novel.
Main Street
Publication of "Main Street"
Move to New Orleans
By 1920, Shaw's family had moved from Kentwood to New Orleans, where he spent much of his youth.
Photographic Investigations of Faint Nebulae
Hubble's doctoral research is published as Photographic Investigations of Faint Nebulae in the Publications of the Yerkes Observatory, presenting his systematic photographic study of faint nebular objects.
Planetary Nebula IC 2003
Hubble publishes an observational note on the planetary nebula IC 2003, adding a focused study of a compact nebular object to his early Mount Wilson research.
President of United States of America
Appointed Presidential Candidate
Spectrum of NGC 1499
Hubble publishes a spectroscopic study of NGC 1499 in Publications of the Astronomical Society of the Pacific, extending his early investigations of emission and reflection nebulae.
The Age of Innocence
Publication of "The Age of Innocence"
This Side of Paradise
Publication of "This Side of Paradise"
Twelve New Variable Stars
Hubble reports twelve newly identified variable stars in Publications of the Astronomical Society of the Pacific, broadening the observational record of stellar variability.
Youth and the Bright Medusa
Cather published Youth and the Bright Medusa, a collection about artistic ambition.
How these records were prepared
Generated from the World History Database historical_events table. Identical display records are collapsed; descriptions otherwise retain the stored text. Coverage and source quality vary. Check primary and specialist sources before citing individual historical claims.