The scientific study of the relations between mental and physical processes is a definition of psychophysics. Psychophysics is a study that studies quantitative relations between psychological events and physical events. The study was established by the German scientist and philosopher Gustav Theodor Fechner.
Answer: explicit declarative memory
Explanation:
Horse Wrangler & Chuckwagon cook
I believe the answer is: 14th amendment
The 14th amendment of united states describes the citizens right ( which covers the conducts of individuals), and it also states that the Government must always provide equal protection of the laws to all groups of individuals (Which covers the conducts of the government)
This is of course a very complex question that does not have a definitive answer, but 1850s would be a good decade to start counting as "Modern". This was a decade of the telegraph and Darwin's The Origin of Species.
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