North America was the closest comparison. The mongol empire covered 9.15 million square miles of land while North America covers 9.54 million square miles of land.
The answer to your question is Muslims refused to spread ideas in Ghana
The farmers of northern alliance wanted a natural alliance to include African American members. It was a financial movement which came into existence in 1875. The farmers of the United States of America were part of this movement and several other political organizations also involve themselves in this organization.
The reason behind this movement was to abolish or end the negative effects of crop-lien system (a credit system) on farmers in the period after the American Civil War and save the rights of the American farmers.
It was primarily the "b. formation of the Vietcong in Vietnam" that led the Truman administration to expand the containment doctrine to include Asia, since this was seen as a threat to democratic principles in the west as well.
Assassination of archduke Ferdinand and the invasion of poland