QUITVI
"The fundamental theme through all the centuries has been the principle that force and
power are the determining factors. All development is struggle. Only force rules. Force is
the first law Only through struggle have countries and the world become great. If one
should ask whether this struggle is gruesome, then the only answer could be - for the weak,
yes, for humanity as a whole, no. Instead of everlasting struggle, the world preaches
cowardly, and everlasting peace. These three things, considered in the light of their
ultimate consequences, are the causes of the downfall of humanity."
who said it

Adolf Hitler

Explanation:

Adolf Hitler was a German dictator and the leader of the Nazi party who led the onslaught against the Jewish people during the Second World War between 1939 to 1945. He is believed in the use of force, and was responsible for the genocide against the Jewish nation (which he considered as less human) during the Holocaust. The foregoing Statement was made by Adolf Hitler in 1926 during one of speeches titled “Force and Struggle” delivered at Essen in November, 1926, after the publication of his book “Mein Kampf” in 1925. He is notorious for the evil which he committed during the Second World War, particularly against the Jews.

1. it was caused by feudalism

2. charlemagne used christianity as a major cornerstone for his rule. cloisters were built all over the empire to act as centers for the (re)population of the vast european wilderness.

3. the europeans feared the next raid every time chetak

i'm not so sure about #6. but i hope i you with the first 3.