It’s 1865 when the 13th amendment was ratified i believe- hope this helped, have a good night!
He wrote a detailed memoir about his experience.
The reason was simple to understand. They all were against the capitalistic economy that was eating up the profits of the society and diverging it to the more wealth and affluent persons in the US society. That seemed to be a very objectionable point of view at that time.
They were pretty successful because they had help from the French. A decade before the war tensions had started between the colonists and the British authorities.
