Collectives, command economy, basic health care benefits, and price controls
The thing which was a major factor that threatened the major unity in the United States in the mid-19th century was:
<h3>The Great Depression</h3>
This refers to the period around 1929 in the United States which has a profound effect on the national economy.
This led to the failure of many banks, increase in unemployment and high deflation rates which all threatened the national unity.
Read more about Great Depression here:
brainly.com/question/441267
The <span>purposes of the three </span>freedmen's<span> bureau was to oversee relations between former masters and slaves</span>
The Wright brothers patent war centers on the patent they received for their method of an airplane's flight control. The Wright brothers were two Americans who are widely credited with inventing and building the world's first flyable airplane and making the first controlled, powered and sustained heavier-than-air human flight on December 17, 1903.[1][2][3]