How did congress respond to the black codes and other southern state actions of 1865 and 1866?

Black Codes
Andrew Johnson was the 17th American President who served in office from April 15, 1865 to March 4, 18 69. One of the important events during his presidency was the Black Codes during the Reconstruction Era following the Civil War.

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.