Explanation: During the Great Migration, African Americans ended up creating their own cities within big cities, one which happens to be Harlem**Harlem Renaissance** The black experience during the Great Migration also became an important theme in the artistic movement first known as the New Negro Movement which today is known as the Harlem Renaissance.
Why, The Wilmot Proviso amendment would have closed California and New
Mexico to slavery in 1846 as a requirement for their annexation,
but Congress did not pass the proviso.
