18 September 1870 September 17, 2013 Author: Staff The Old Faithful Geyser is first observed by Henry D. Washburn during an expedition to Yellowstone. Famous Words of Inspiration..."The significance of a man is not in what he attains but in what he longs to attain." Kahlil Gibran — Click here for more from Kahlil Gibran Related posts: 24 December 1974 18 September 2001 18 September 14 Categories: History Tags: 18 September, 1870