12 Science Events Christmas Cards, 5"X7" Folded Cards With Envelopes, Science Teacher Gifts, Gifts For Scientists, Geeks And Nerds Each Christmas ornament is encircled by a science-related fact that occurred in different years, but all on December 25th. They are as follows: 1. James Webb Space Telescope was launched - 2021 2. Sir Isaac Newton born - 1642 3. Anders Celsius introduces the Centigrade scale - 1741 4. Return of Halley's Comet- 1758 5. Physician Ephraim McDowell performs the first abdominal surgery in the U.S. - 1809 6. Clara Barton, a nurse who founded the American Red Cross, was born - 1821 7. Thomas Edison marries his first wife -1873 8. Richard E Shope, first to isolate an influenza virus, was born - 1901 9. Ernst Ruska, inventor of the electron microscope, was born - 1906 10. Apollo 8 finished its successful moon orbit -1968 11. Longest battery-powered car trip ends - 1985 12. Scientists in Japan achieved -271.8° C, the coldest temperature ever recorded -1989.