1869 - Born on the 30th of November in Stenstorp, in present day Falköping municipality, Sweden.
1892 - He invented a milk-fat tester to check milk quality of the milk delivered.
1896 - Admitted to the Chalmers University of Technology where he earned his Master's degree and a Doctorate.
1901 - Married Elma Persson, they had two daughters and two sons,Gunnar and Anders.
1906 - Chief Engineer at the Gas Accumulator Company (manufacturer and distributor of acetylene).
1909-1937 - Managing Director of the renamed company Svenska Aktiebolaget Gasaccumulator (AGA).
1912 - Dalén was blinded in an Acetylene explosion.
- Awarded the Nobel Prize in Physics for his automatic regulator for lighthouses and buoys.
1922 - He invented the AGA cooker
1937 - Nils Gustaf Dalén died on 9th of December.
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