Georges Lemaître vs Igor Sikorsky
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Compare the life timelines of Georges Lemaître (1894–1966) and Igor Sikorsky (1889–1972) side by side. Their lives overlapped for 72 years, from 1894 to 1966.
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Georges Lemaître (1894–1966)
- — Born in Charleroi, Belgium Verified
- — Served as an artillery officer in the Belgian army during World War I Verified
- — Studied astronomy at Cambridge under Arthur Eddington Verified
- — Ordained a Catholic priest Verified
- — Published the first paper proposing an expanding universe Verified
- — Appointed professor at the Catholic University of Louvain Verified
- — Earned a PhD from the Massachusetts Institute of Technology Verified
- — Proposed the 'primeval atom' hypothesis, forerunner of the Big Bang theory Verified
- — Became president of the Pontifical Academy of Sciences Verified
- — Died in Leuven, Belgium Verified
Igor Sikorsky (1889–1972)
- — Born in Kiev, Russian Empire Verified
- — Built the first multi-engine aircraft, the Russky Vityaz Verified
- — Developed the Ilya Muromets airliner and bomber Verified
- — Emigrated to the United States Verified
- — Founded the Sikorsky Aero Engineering Corporation Verified
- — Produced flying boats for transoceanic air travel Verified
- — First flight of the VS-300 helicopter Verified
- — Developed the R-4, first mass-produced helicopter Verified
- — Retired as engineering manager of Sikorsky Aircraft Verified
- — Died in Easton, Connecticut Verified