How did railroads change how mail was delivered?

Railway cars were used to sort mail route. When Railway Mail Service began in 1864, mail was exchanged on nonstop trains by hand. Trains were slowed down so clerks could pass the mail off to one another. Shortly thereafter, this dangerous system was replaced with wooden F-shaped cranes placed trackside.

secretly cooperate with one another.

- "the past is made of multitudinous items ranging from anything that can be collected, recollected or assessed to originate in the past. as such, the past is a gallimaufry of particulars that may not have been related in any way. however, the human mind seeks organization to understand concepts and other things. the human mind therefore seeks relationships in explaining and studying the past. history being a humanity, dictates that historians have to serve this human trait by bringing structure to details of the past. historians do this by creating interpretive frameworks that capture as many details as possible."

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