Thanks for answers.
But i still have few q.
1)After fall of west emp. and forming of new germanic kingdoms if tribes didnt exterminate empire citizens why dark ages started?
The term 'Dark Ages' is a bit of a misnomer. It relates to the lack of surviving post 476AD written material rather than the west languising in some waste land. Things actually improved in some respects for the inhabitants of the western half of the Empire once the 'barbarians' took over. There were fewer taxes and less restrictive laws. Basically things went on as before, but were not written about as there were less literate people to do so. And we must not forget that most of the tribes did not have a written language to be able to put down what was happening.
2)If they absorbe landoning class why cultural progres was stop?
Because it did not stop! Many so-called 'barbarians' actively sought to emulate the Roman way of life and many aspects of Roman life-styles continued for many, many years i.e. armour, clothing, use of Latin as a universal language. However, as time progressed the tribes began to evolve into new identities and the 'Roman Way' became less important.
Just thinking: before fall it was normal for young aristocrat to learn to write and read *for example* from childhood. When germanic tribes come at the gates of some city in gaul after empire was dead if they want to absorbe local population and to acept empire (roman) customs (at some point of course) we wouldnt have dark ages BUT if they come at the gates to pillage and exterminate citizens then there wont be young aristocrat how know to read and write and to pass old knowlage to new generations. In time of empire ``lot`` of ariistocrats and scolars know to write that is why we have classic writings,art, medicine,math, arhitecture and philosofy. But it is obvius that those tribes cancel civilased way of life (well romans use slaves and were brutal but..)..any way i am not expert in history expecly not for late antiqity but in that time lifes of many empire citizens must been hell and tramatic (just it was to dacians, gauls, iberians and others when they get new masters).
It was not helpful to kill the very people who may well inspire the rest to revolt! It was better to assimilate the population, reduce the laws and taxation and let them carry on as before rather than kill them off, forcing your own tribesmen to do the tilling of the land, herding of flocks, cultivating of vines and olive groves. There are a number of new books out now that look at the social and economic impacts of the 'barbarian invasions' that are well worth seeking out if your interested in this subject.
This afternoon i found this statistic:
POPULATION ESTIMATES, 400-1500 A.D
Population (reckoned in millions of people)Region
400 650 1000
British Isles 1 0.5 2
France & Lowlands 5 3.5 6
Germany & Scandinavia 3.5 2 4
Iberian Peninsula 4 3.5 7
Italy 6 2.5 5
Greece & Balkans 5 3 5
Asia Minor 12 7 8
Syria & Levant 5 3 2
Egypt 6 3 1.5
North Africa 2.5 ---- 1
Just look at Italy and France betwean 400 and 650!!!
(statistic is taken from
http://www.tulane.edu/~august/H303/h...Population.htm )