The yippies were an anti-war protest group.
The Great Migration is depicted in the image. Also known as the Great Northward Migration, it marked the movement of 6 million african americans from the rural south of the United States to the Northwest, Midwest and West, that took place between 1916 and 1970. It was one of the most rapid internal migrations in the world not caused by war or famine, and it meant leaving their economic and social base to find a new one, made easier by the labor shortage that WWI had generated.
It was yet another tax. this one taxing stamps for mailing. but it was a fairly small tax until it hit the big businesses who bought bulk and the tax hurt.
It impacted Europe severely. Many people lost there jobs and the unemployment rate skyrocketed. All the levels of trade between the countries had fell out.
Rome's location on the Italian peninsula, and the Tiber River, provided access to trade routes on the Mediterranean Sea. As a result, trade was an important part of life in ancient Rome. ... Later, the Roman armies used these same routes to conquer large amounts of territory and expand the empire along the Mediterranean.
I hope this helps!