1 January 1909President of SwitzerlandAdolf Deucher
Begins a one-year term as President of the Swiss Confederation.
Historical records for Switzerland in 1909, rendered directly from the World History Database and ordered by month, day and event.
Begins a one-year term as President of the Swiss Confederation.
Receives his first honorary doctorate, awarded by the University of Geneva.
Becomes a member of the Physical Society of Zurich.
Presents a major lecture arguing that radiation displays both wave-like and particle-like properties.
Becomes associate professor of theoretical physics at the University of Zurich.
This page is generated from stored World History Database records matching the exact country and year shown above. Exact duplicate display records are collapsed. Records without a month are listed after the monthly sections. Source provenance varies by record; formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.