Answer:
This "System" consisted of three mutually reinforcing parts: a tariff to protect and promote American industry; a national bank to foster commerce; and federal subsidies for roads, canals, and other "internal improvements" to develop profitable markets for agriculture.
Johannes Kepler discovered that planets move in elliptical orbits
I am going to guess that it would be a loss of memory.
Answer:
Which letter exactly?
Explanation:
Most likely his action to end racism?
The Passage of the 18th Amendment to the Constitution.