What is it called when you do not have to testify against yourself?

Self-incrimination, or also called self-crimination or self-inculpation, or pleading the 5th amendment

Explanation:

from comments...

must repent and believe in god.

or the book

journey across time - chapter 10 "the rise of christianity"

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.