I find that world view is a huge thing when it comes to the time of smallpox. Some would see it as a fault of the First Nations trading systems and traditions, while others blame solely the Europeans. I think it is quite interesting that two communities can have such drastic differences and sides to the same story. There is little the First Nations could have done to prevent this, same as the Europeans who were completely unaware this disease had travelled with them. There is never one correct answer, but always multiple views and opinions which create the world view we all have.
