Constitution of USA
The US House of Representatives rejected a proposal to give woment the vote
Permanent historical records · Updated 2026-11-03
1915 in United States of America
Explore 30 historical events and records for United States of America in 1915.
Historical records for United States of America in 1915
Sorted by month and day. Records with no month are shown last. Showing 30 of 30 unique records.
30Unique records
1 of 1Page
30Named events on this page
14Named people on this page
9Places on this page
January
Legislation
The US House of Representatives rejected a proposal to give woment the vote
March
Discovery of Pluto
Lowell Observatory captures faint images of Pluto, but the object is not recognised as the predicted planet.
April
Birth of McKinley Morganfield
Birth of McKinley Morganfield, Mississippi
Birth of Billie Holiday
Birth of Billie Holiday
May
Sinking of SS Gulflight
A US steamer is torpedoed off the Scilly Isles by a German submarine, 3 lives are lost
Sinking of SS Gulflight - Vessel Survives
Gulflight was torpedoed by U-30 on 1 May 1915 but did not sink; she was towed to safety and later returned to service.
Birth of George Orson Welles
Birth of George Orson Welles
Sinking of RMS Lusitania
Germany sinks the Cunard liner Lusitania, 1152 lives are lost including 102 Americans
Sinking of RMS Lusitania - American Response
Wilson's administration sent Germany diplomatic notes after Lusitania's loss, challenging attacks on passenger and neutral shipping.
June
Gottingen Relativity Lectures
Lectures in Gottingen on his gravitational theory, presenting the unfinished framework to leading mathematicians while he approaches the final generally covariant equations.
November
Restricted Covariance Equations
Presents revised gravitational field equations to the Prussian Academy during his final push toward general relativity.
Second November Field Equations
Presents improved gravitational equations to the Prussian Academy and moves substantially closer to the generally covariant form completed later that month.
Unimodular Gravitation Equations
Presents another formulation of gravitation using a restricted coordinate condition with unit determinant.
Mercury Perihelion
Explains Mercury's anomalous perihelion advance using the emerging general theory of relativity.
Final Generally Covariant Field Equations
Presents the final generally covariant gravitational field equations to the Prussian Academy, completing the mathematical core of general relativity.
General Relativity Field Equations
Presents the final generally covariant gravitational field equations to the Prussian Academy.
Revised Solar Light-Bending Value
Using the completed theory, obtains the full gravitational deflection predicted for starlight grazing the Sun, approximately twice his earlier 1911 estimate.
December
Göttingen Society Corresponding Membership
Elected a corresponding member of the Royal Society of Sciences at Göttingen.
Other events (month unknown)
American Relief
Appointed Chairman of the American Relief Commission in Belgium
Captain
Appointed Captain
Discovery of Cepheid Stars
Harlow Shapley uses Cepheids to place initial constraints on the size and shape of the Milky Way, and of the placement of our Sun within it
Einstein-de Haas Effect
Publishes experimental work with Wander de Haas linking magnetism to angular momentum.
Election
Elected Senator
First Mesa Verde Visit
Cather visited Mesa Verde, gaining impressions that later informed her fiction.
Göttingen Relativity Lectures
Lectures on gravitation in Göttingen, stimulating intense discussion with leading mathematicians.
Melody in A Major
Composes a melody later adapted into the popular song It's All in the Game.
Photoelectric Equation Verification
Experimentally verifies Einstein's relation between light frequency and the kinetic energy of emitted electrons.
The Freudian Wish
Publication of "The Freudian Wish"
The Song of the Lark
Cather published The Song of the Lark, a novel about a singer's artistic development.
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.