20th Century

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19th Century

20th Century

21st Century

This is a summary of lore events occurring in the 20th Century in the 星际公民 universe.

1901 – 2000

Date	Type	Event
1930-02-18	Exploration	Pluto discovered by Clyde Tombaugh.
1948-02-16	Exploration	Miranda discovered by Gerard Kuiper.
1959-09-13	Exploration	The Soviet Luna-2 Space Probe becomes the first manmade object to reach the surface of Luna, impacting east of Mare Imbrium.
1961-04-12	Exploration	Soviet cosmonaut Yuri Gagarin becomes the first 人类 to reach space, and first to complete an orbit of 地球.
1966-03-01	Exploration	The Soviet Venera-3 Space Probe crash-lands, becoming the first manmade object to reach the surface of Venus.
1969-07-16	Exploration	American Neil Armstrong becomes the first Human to visit Luna, and subsequently the first to visit a foreign astronomical object.
1971-11-27	Exploration	The Soviet Mars-2 Lander becomes the first manmade object to reach the surface of 火星, although it fails during descent.
1977-03-10	Exploration	Rings of Uranus discovered by James Elliot, Edward Dunham and Jessica Mink.
1978-06-22	Exploration	Charon discovered by James Christy.
1979	Exploration	Jovian Rings discovered by NASA's Voyager 1 probe.
1984-07-22	Exploration	Rings of Neptune discovered by Patrice Bouchet, Reinhold Häfner and Jean Manfroid.
1992-08-30	Exploration	Kuiper Belt discovered by David Jewitt and Jane Luu.