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Check out my other channel, Sam O'Nella Vlog!
https://www.youtube.com/channel/UCvay...

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  / sam_onella  

Intro and outro song:

"Brandenburg Concerto No. 4 in G, Movement I (Allegro), BWV 1049" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/b...

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Sources (bet ya never thought you'd see these)

Trepanning:
https://www.ncbi.nlm.nih.gov/pmc/arti...

Sancho the Fat:
https://www.sciencedirect.com/science...
https://www.deepdyve.com/lp/springer-...

Sushruta's Rhinoplasty
http://ispub.com/IJPS/4/2/8232

Cataract Surgeries:
http://cdn.intechopen.com/pdfs/42710/...

"louis XIV fistula"
http://www.bilan.ch/garry-littman/eng...
I didnt end up using this last one for a handful of reasons but check it out if you dare.