Wie viele Jahre dauerte der Pony-Express-Postzustelldienst?
How many years did the Pony Express mail delivery service last?
The Pony Express was in operation for just around one-and-a-half years, from April 1860 to October 1861.
Der Pony Express war nur etwa anderthalb Jahre in Betrieb, von April 1860 bis Oktober 1861.
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