It began in 1947, again in 1952, more then 4 million from 1954 until 1964.
I think its was because of Lincoln's rejection of the Final Compromise.
(Extension of Slavery)
Answer: The major political parties are organized at the local (usually county), state, and national levels. Party leaders and activists are involved in choosing people.
Hopes this helps. Umm... can u pls mark me as brainliest
Explanation:
The main cause was thirst for new economic markets/raw materials and desire for military strength
They were called the Confederates.