Art, math, science, maybe psychology
Answer and Explanation:
I believe you are referring to what happened to African Americans during the reconstruction of the south, when they were freed from slavery.
In that period, laws were established that prohibited African-Americans from being victims of discrimination and forced labor, although this still happened in society, especially episodes of discrimination. In addition, Africans have gained the right to vote, to be political representatives and to hold public office, as a reflection of their citizenship that was guaranteed through emancipation. Blacks could also participate in commerce, attend schools and own homes.
The Second World War was the event that shook the world in those years. France was a country involved in the conflict and the forces of the axis caused many deaths between 1939 and 1945. Many of those deaths were men, regardless of age. For this reason, there is clearly a general decline of men in the pyramid population of France in the 50s.
Explanation:
Reasons:
a.The unfair treaty signed after first world war cause the feeling of revenge.
b.The advent of cold war after rise of powerful and cunning people in different countries.