Mandate of heaven refers to the idea that heaven would bless the authority of a just ruler, but on the other hand be with an unwise ruler. if this was the case, it would give the mandate, or rule, to someone else. true or falsue

   True

Explanation:  The Mandate of Heaven meant that the ruler had a divine blessing, and on the basis of his virtues he was chosen by God to be a ruler. This principle implied that there could be only one ruler because there is only one heaven. However, this rule of one ruler was not limited to one ruler until the end of his life, that mandate was interchangeable. This change concerned the choice of another dynasty, or simply another ruler from the existing dynasty, if the previous ruler did not rule justly, was a tyrant and the like. Then the mandate would be handed over to someone who deserves it according to his virtues. This was the rule of the heavenly mandate, and it can be discussed whether it was always applied or there was political bias, various noble intrigues, blackmail, interests, etc.

true

Explanation:

this article will :

answer:   migrations were important in the neolithic period. "two major migrations passing through southeastern europe were confirmed by the means of archaeo-genetic studies."

the first migration was the early neolithic period -- 6,000 before common era (bce) -- when the first farmers, from anatolia -- asia minor -- spread through europe. the second migration occurred during the early bronze age (3,000-2,500 bce) when the so-called "steppe population," from the eurasian steppe, replaced much of northern europe's previous population.

the first farmers of northern and western europe passed through southeastern europe with limited hunter-gatherer genetic admixture, which occurs when two or more previously isolated populations begin interbreeding. however, some groups that remained mixed extensively -- without the male-biased, hunter-gatherer admixture that prevailed later in the north and west, according to latest discoveries. southeastern europe continued to be a nexus between east and west, with intermittent genetic contact with the steppe people up to 2,000 years before the migrations that replaced much of northern europe's population.

"in some places, hunter-gatherers and incoming farmers seem to have mixed very quickly," says iain mathieson, a geneticist at the university of pennsylvania, who was first author of the paper. "but, mostly, the two groups remained isolated, at least for the first few hundred years. these hunter-gatherers had been living there for thousands of years, and it must have been quite a shock to have these new people show up -- with a completely different lifestyle and appearance."