Explain how world war 1 led to the rise of modernism

First World War put an end to 19th century (sometimes 19th century is called "long century", i.e. 1789-1914 whereas the 20th century a "short" one, i.e. 1914-1989, or -2011 ?), great empires ended (ottoman empire, austro-hungarian, German Second Empire and in 1917 Russian Romanov empire). In arts but also in philosophy there was less attachment to older 19th-century perspectives. Avant-garde in arts search for the way how to cut off the weight of traditions. In philosophy and literature one can find the same but these trends are not always optimistic (existentialism, phenomenology), liberal welfare-society is constantly questioned, belief in power of unconscious (as a substitute for god) as well. Europe had an headache from the fast secularizationfast changes that occurred in 19th-century Europe.

Explanation:

remember the people who sacrificed their lives at gettysburg

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president franklin roosevelt supported the tva as part of his first new deal measures approved by congress in 1933. this new agency was designed to control floods, produce electric power, and improve the lives of people living in the tennessee valley. the tva accomplished many of these goals despite problems.