1 gen 1894 anni - Percival Lowell's Observation and Edward Emerson Barnard's Report
Descrizione:
Percival Lowell (1855 - 1916) begins observation of Mars at his observatory in Flagstaff, Arizona. That same year, Edward Emerson Barnard (1857 - 1923) reports that he has found no evidence of canals on Mars.
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