The byzantine empire is known for its longevity (long life), investigate why and tell me the results of your findings. (create question) mod. 1.05 this is for flv by the way.

The history of the Byzantine Empire extends from the 4th century until 1453. Like the eastern part of the Roman Empire that survived until 1453, the Eastern Roman Empire (called the "Byzantine Empire" since the German historian Hieronymus Wolf coined this term in 1557) It has its origins in the very foundation of Rome. Thus, the predominant feature of Byzantine history is the exceptional longevity of the empire, despite having faced innumerable challenges throughout its existence, as reflected by the large number of sieges suffered by its capital, Constantinople. The creation of this city by Constantine in 330 was a second starting point in the medieval stage of the Eastern Roman Empire, with the division into two parts of the Roman Empire in 395 by the Emperor Theodosius I the Great. Indeed, the location of Constantinople at the crossroads between East and West contributed, to a large extent, to the immense wealth of the Empire. This wealth along with its great prestige made it a respected empire, but also in a very coveted one. In addition, the wealth of imperial historical sources allows a global and detailed view of Byzantine history, although the impartiality of historians, often close to power, is sometimes questionable.

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."

d. islands off the coast of newfoundland