During these millennia, the Asers were drafting and cultivating their intercontinental connections, enhancing the exchange of knowledge, skills and produce worldwide. The purpose was to produce common features and grounds for language and culture, through the exchange of procreators, skills, crafts, arts and architecture. Their method was co-operation between parallel constitutions of royals, nobilities and laymen. According to the saga the Eurasian monarchies were established shortly after the Ice Age. From the one arctic group of people that survived Ice Age, called "Aser", only three families were first made to explore the Eurasian north – and leave offspring in their respective regions; east, west and south of the Baltic Ocean. These offspring became the core-families of three major kingdoms, who managed to grow into the societies that managed to populate western, central and eastern Europe. Within the open lands of northern Eurasia, the royals were producing 'houses' of nobility to inhabit and populate the various regions and there found a third cast of offspring, called Earls, to produce structured societies within their respective shires and villages.