Why does the "Progressive Era" end abruptly in 1914? Would you consider the era a failure or a success? Why?

On the morning of June 29, 1914, Americans awoke to the news that the heir to the ... Among the casualties of the war was the end of the Progressives' faith that ... World War I would claim the lives of millions and ignite revolutions in its wake

Explanation:

beowulf is considered an epic poem because it describes the actions of a great warrior.

beowulf is taken into account an epos. in this poem, the main character may be a hero who travels nice distances to prove his strength at not possible odds against supernatural demons and beasts. in the poem, beowulf was a young warrior and he leaves his country to hrothgar, as hrothgar was in a great trouble.