Modern transport and technology Mail
a u.s. railway post office.
the first airmail flight in germany, 1912.
the postal system important in development of modern transportation. railways carried railway post offices. during 20th century, air mail became transport of choice inter-continental mail. postmen started utilize mail trucks. handling of mail became increasingly automated.
the internet came change conditions physical mail. email (and in recent years social networking sites) became fierce competitor physical mail systems, online auctions , internet shopping opened new business opportunities people items bought online through mail.
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