I'm pretty sure Wikipedia is a tertiary source, actually. Their guidelines recommend preferring secondary sources, and place significant restrictions on the use

I'm pretty sure Wikipedia is a tertiary source, actually. Their guidelines recommend preferring secondary sources, and place significant restrictions on the use of primary sources. https://en.wikipedia.org/wiki/Wikipedia:No_original_research#Primary,_secondary_and_tertiary_sources https://en.wikipedia.org/wiki/Wikipedia:No_original_research...