It's taught in schools that one of the major problems Native Americans faced with the influx of Europeans was disease. The illnesses were of little consequence to Europeans due to adjusted immune systems, but it seems life the reverse was not true.
Is this just a matter of the victor writing the books, or were there not catastrophic diseases passed from the natives to European settlers?
hi! not discouraging further discussion here, but fyi this is a pretty popular question in this sub; you can get started on it in this section of the FAQ (skip past the first few posts re Norse contact)