Descriere: The twentieth century saw a remarkable shift in the way that vast
numbers of people lived, as a result of technological, medical, social,
ideological, and political innovations. Terms like ideology, world war,
genocide, and nuclear war entered common usage and became an influence on
the lives of everyday people. War reached an unprecedented scale and level
of sophistication; in the Second World War (1939-1945) alone, approximately
57 million people died, mainly due to massive improvements in weaponry. The
trends of mechanization of goods and services and networks of global
communication, which were begun in the 19th century, continued at an ever-
increasing pace in the 20th.
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