They wanted to use tariffs to protect local manufacturers and producers from foreign competition. When you increase the tariff then importing costs more and people don't buy imported goods but buy local goods because they are cheaper. This helps domestic manufacturers and producers.
Answer:
Calvinism was able to grow so rapidly for three reasons:
1. Calvin’s theology was a complete, (almost) fully worked-out system which could fully take the place of Roman theology
2. Calvinists embraced an active missionary style (or zeal, even) of the type presented by the early Church
3. The founding of the Geneva Academy, from which many Calvinist leaders sprung
Eli Whitney used them to assemble muskets in the 19th century, it’s allowed unskilled workers to produce large numbers of weapons quick and at a lower cost and made repair and replacement of parts cheaper and more efficient
