Some characteristics in realism writing were gritty details, realism aims at an accurate and unsentimental depiction of social problems and issues. Realism also focused on real life heroes in everyday circumstances.

The Civil War disillusioned the writers turning from Romanticism to Realism. After the Civil war the US was hit by a wave of immigrants bringing in social problems.

The Progressive Era was a movement an attempt to improve American politics, community life, and business by embracing social and political reform. It turned many writers from Romanticism to realism, stories focused on ordinary characters, and events, and seeking to reflect life as it really was.

-Regionalism in literature embraces not the universal but the particular, focusing on what specifically characters a geographical are in its people.

- Regionalism and Realism are very similar to each other because Regionalism writes about very specific features oh relevant landscapes and villages where Realism express things that can happen but did not, so both play well when combined together. 
 

- Regionalist writers attempted to re-create in careful detail both the relevant physical features of landscapes and towns and the often colorful characters inhabit them.