The Treaty of Paris of 1763 ended the French and Indian War/Seven Years' War between Great Britain and France, as well as their respective allies. In the terms of the treaty, France gave up all its territories in mainland North America, effectively ending any foreign military threat to the British colonies there.
Answer:
When the first European explorers came to North America, they hoped to find vast amounts of gold and silver.
Causes: The problems caused by industrialization, urbanization, immigration, and political corruption. Reconstruction in general after the Civil War also contributed - people were just trying to improve America.
Effects: The 18th Amendment (prohibition of alcohol), the 19th amendment (women's right to vote).