[InitialLastName]

Given that you apparently didn't learn the difference between a primary source and a secondary source, I'd say the education system failed you.

A primary source is one that "creates" the information of history, e.g. a letter, journal entry, official announcement, or original research. A secondary source (nominally) synthesizes and summarizes primary sources into a coherent narrative.

[billysielu]

I did learn the difference, over 20 years ago, and today is the first time it's come up since. No need to be rude.