Answer: 1) change of the lifestyle: people whose ancesters lived in rural areas moved to the cities and towns (urbanization), 2) very fast change of the lifestyle (in the case of European industrial revolution). This radical change took place with 1-2 generations which had very bad consequences on mental health of European population.
Explanation: Industrial started in England already in 18th century, but lated was spread also to European continent. Industrialization means automatically urbanization. These two changes took place very quickly. Rural people wanted to adopt bourgeoise lifestyle and earn more money so they moved to cities and towns and worked in factories. It had a very devastating influence on them and their children. Freud describes that succintly in "Unbehagen in der Kultur" (1930). Probably the worst (the fastest) it was in Germany.
A unified group of countries, the Communist bloc was located
in Eastern Europe. This block had a major country in it like the Soviet Union.
The name that NATO gave to this block was Eastern Block. The other countries
that were part of this block were Poland, Romania, Bulgaria, Hungary and
several other European countries. This was a group that was led by the mighty
Stalin of USSR. Those people that were not obedient to the communist leaders
were either ousted from government jobs or were put to unimportant jobs.
The Establishment Clause , is the clause in the first Amendment that says the government cannot establish an official religion. Hope this helps (: