Egon Spengler him, which leaves him a little flustered. He celebrates his 40th birthday during this series, which would put him in his late twenties when "The Real Ghostbusters" began. Age is the largest factor causing Spengler to having transition from active ghost hunting to a mentorship role; in one episode where the original Ghostbusters guest starred on an episode the audience clearly sees middle adulthood has affected the speed and weakened the stamina of the original Ghostbusters. Although Egon Spengler does not appear in the 1990 "The Earth Day Special", his character and status as a Ghostbuster is mentioned, and Harold
Oswald Spengler in 1914, but publishing was delayed by World War I. Due to a congenital heart problem, Spengler was not called up for military service. During the war, however, his inheritance was largely useless because it was invested overseas; thus he lived in genuine poverty for this period. When "The Decline of the West" was published in the summer of 1918, it was a wild success. The perceived national humiliation of the Treaty of Versailles (1919) and later the economic depression around 1923 fueled by hyperinflation seemed to prove Spengler right. It comforted Germans because it seemingly rationalized their downfall as