Are there good public sites available that have information about Portugal and Brazil ? They don't need to be in portuguese, I just need information about genealogy and registries of persons who were ...
Historical scholars classify sources as "primary" or "secondary." Princeton University, "What is a primary source" Library and Archives Canada, "Toolkit: Defining Primary and Secondary Sources" ...
In genealogical research, what is the difference between primary information and secondary information. Why do genealogists bother with making such distinctions?