In the early 1800s, mass production was made possible by the use of interchangeable parts. the use of handmade products. the use of skilled laborers. the use of expensive materials.

When president johnson vetoed a law that would extend the freedmen’s bureau, congress reacted by supporting the veto and closing the freedmen’s bureau. writing a new law to show support for the black codes. overriding the veto and expanding the agency’s powers. drafting a law to prevent african americans from voting.