Episode 10 - The Emptiness Within | Regency Cthulhu 

Simplification and a certain amount of inaccuracy. For example not all people accused of witchcraft were herbalists or healers, though most were poor and people who had fallen out with their neighbours. Most witchcraft accusations, at least in the UK we're made by people of the same class. The Last Witch Craze about the Royal Institute and witchcraft is a fascinating read.

Dynamite, patented 1867, Regency Period, 1795-1837. No overlap and neither existed in the mid 1800s.