The Vikings in America (part 2).

Chart of the Viking expansion. By Max Naylor. Derivative work from Rowanwindwhistler

The human hive story would happen again. That migratory wave, with its epicentre in Norway, kept spreading through other regions. Among them, was the volcanic and cold Iceland. As a result, in the first half of the 10th century, the useable lands began to be not enough to sustain the whole settlement. As time passed, the crisis worsened. In order to get away from the phantom of famine and overcrowding, the people had to look up to the western seas.