Dr. Henry A. Rowland of Johns Hopkins…

January 1900 CE

Dr. Henry A. Rowland of Johns Hopkins University announces a theory about the cause of the Earth's magnetism on January 5, 1900.

Locations
Baltimore Baltimore City Maryland United States View →

Groups
Maryland, State of (U.S.A.) View → United States of America (US, USA) (Washington DC) View →

Subjects
Theory View →

Regions

Subregions

Related Events

Active Filters
People: Armand Jean le Bouthillier de Rancé
Refine Results

No related events match the current filters.