Date	Event
1906	Mars and its Canals published, Percival Lowell.
1906	Earl C. Slipher arrives at Lowell Observatory and continues his photographic studies.
1907	"...the proof by astronomical observations...that conscious, intelligent human life exists upon the planet Mars," reported as (one of) the most momentous events of 1907 by the Wall Street Journal.
1908	Mars as the Abode of Life published, Percival Lowell.
1909	George Ellery Haleusing using the Mt. Wilson 60" reflector, sees "...not a trace" of canals.
1911	A Princess of Mars, first of eleven "John Carter on Mars" novels, published by Edgar Rice Burroughs (uses Schiaparelli nomenclature; Martians have green skin).
1914	Panama Canal completed.
1926	Large day/night temperature difference (implication of thin atmosphere) measured by William Weber Coblentz and Carl Otto Lampland.
1930	Attempts to detect oxygen on Mars fail.
10/30/ 1938	War of the Worlds broadcast by Orson Welles (Grovers Mill, New Jersey landings). Estimates that 1.2 million, of the 6 million, listeners thought it was a real invasion.
1947	Carbon dioxide, but no oxygen, detected by Gerard Peter Kuiper.
1947	Das Mars Projekt (10 ships, 70 crew members) proposed by Werner Von Braun.
1962	Werner Von Braun considers the Mars Project to be 15-20 years away.
1965	NASA Source Book on Space Sciences , published: most astronomers would probably agree that there are apparently linear markings...of considerable length on the surface of Mars.
7/14/1965	Mariner 4 flyby discovers craters on Mars and little else.
1965- present	An indepth look at all of the Martian related space missions since 1965.