1907Automatic Lighthouse ControlNils Gustaf Dalen
Reduces fuel use by activating navigation lights only during darkness.
Historical records for Sweden in 1907, rendered directly from the World History Database and ordered by month, day and event.
Reduces fuel use by activating navigation lights only during darkness.
Appointed Party Leader of the Social Democratic Party
Succeeds as King of Sweden
Develops a light-sensitive valve controlling lighthouse illumination automatically.
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varies by record; formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.