What was added to the Constitution two years after it was ratified? Why?

Ten of those amendments, known as the Bill of Rights, were ratified on December 15, 1791.  The Constitution was not ratified by all states until May 29, 1790, when Rhode Island finally approved the document, and the Bill of Rights was not ratified to become part of the Constitution until the end of the following year.

Explanation:If its not right then oofies =,= and your welcome

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.