Supposedly the most famous British atrocity story concerning the Germans during World War I was the "Corpse-Conversion Factory"-rumor; it was said the Germans produced soap out of corpses. A story, which got so well believed that it was repeated for years - without a clear evidence of reality at that time. (
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A Wide Area Network is a wide area proprietary network or a network of local area networks. Usually consisting of computers, it may consist of cellular phones, too.
The Roman smoke signals network consisted of towers within visible range of each other and had a total length of about 4500 kilometers. It was used for military signaling.
For a similar telegraph network in ancient Greece see