Assuming this question is asking about the physical method, the answer is mail delivered by ship and cable. At the time, French was the language of diplomacy and German the language of science and technology. I don't know about the language of commerce. I suppose some people used Latin. English was also used. First-generation Americans wrote home in their mother tongue to friends, family and newspapers.
Hi guys
Europe was led into warld war1.
the black plague in the early 1900s
asia and europe
It was created in the first decade of the 1900s, in 1902 to be exact. See the Related Link below.
The Balkin Peninsula in southeastern Europe was a hot bed of nationalist and the ethnic rivalries in the early 1900s.
noce
i need to now what the navy made to communicate in the early 1900's
freedom
Balkan Peninsula in southeastern Europe
Opportunity
in late 1800s and early 1900s the industrial revolution took place