The reason why the British intervenes in Haiti is mainly because they are a long term enemy of France, which was Great Britain's allies. The invasion of the European people in the Haitian land lead into a Haitian Revolutionary War (which was for anti-slavery and anti-colonial.)
I think you are supposed to put things that happened in the "Early 1600s" box and the changes of that in the "Late 1700s" box. That's just my guess on what I would do.
Pretty sure the snow and horrible conditions really assisted them in removing the Nazi’s from Stalingrad.
The civil war transform the united states into a stronger nation-state economically, politically, and ideologically when Lincoln united the states under one (the northern) idea of freedom. I hope my answer has come to your help. God bless and have a nice day ahead!
