Such frequently recurring movements introduced new blood.
The Hussite wars, the feuds of Burgundian and Armagnac, the renewal of the Hundred Years' War, all prevented it from drawing new blood from the west.
It is not impossible to combine these views, and place the seat of power still in Crete, but ascribe the Renascence there to an influx of new blood from the north, large enough to instil fresh vigour, but too small to change the civilization in its essential character.
There was thus a steady immigration into the kingdom, to strengthen its armies and recruit with new blood the vigour of its inhabitants.
From these are descended the herds and flocks of to-day, with no admixture of new blood until toward the end of the 19th century.
