All I really know about Karl Marx is that he didn't like capitalism. So I would have to say the invention of capitalism.
“The lethal war with Kalinga transformed the vengeful Emperor Ashoka into a stable and peaceful emperor, and he became a patron of Buddhism. ... Nevertheless, his patronage led to the expansion of Buddhism in the Mauryan empire and other kingdoms during his rule, and worldwide from about 250 BCE.”
Savage acts can be committed by an advanced society regardless of time period.
Great compromise ....i think ...needs more details. :)
In general terms, the Marshall Plan was "<span>b. a program to aid European nations and to promote prosperity and democracy," since it was believed that this would help stop the spread of communism. </span>