1892 - 1st successful auroral photograph made
1895 - Austrian newspaper reports that Wilhelm Röntgen has discovered a type of radiation, which later will be known as X-ray.
1905 - Charles Perrine announces discovery of Jupiter's 7th satellite, Elara
1909 - Colombia recognizes Panama's independence
1933 - Construction of the Golden Gate Bridge begins in San Francisco Bay, San Francisco, California.
1974 - Warmest reliably measured temperature in Antarctica of +59°F (+15°C) recorded at Vanda Station.
2005 - Eris, the largest known dwarf planet in the solar system, is discovered by the team of Michael E. Brown, Chad Trujillo, and David L. Rabinowitz using images originally taken on October 21, 2003, at the Palomar Observatory.
