Describe ERTUGRUL GHAZI.

Ertuğrul or Ertuğrul Gazi was the father of Osman I. Little is known about Ertuğrul's life. According to Ottoman tradition, he was the son of Suleyman Shah, the leader of the Kayı tribe of the Oghuz. Nothing is known with certainty about Ertuğrul's life, other than that he was the father of Osman; historians are thus forced to rely upon stories written about him by the Ottomans more than a century later, which are of questionable accuracy. An undated coin, supposedly from the time of Osman, with the text "Minted by Osman son of Ertuğrul", suggests that Ertuğrul was a historical figure. Another coin reads "Osman bin Ertuğrul bin Gündüz Alp", though Ertuğrul is traditionally considered the son of Suleyman Shah.

Explanation:

(you spell it wrong btw)

=>Ertugrul Ghazi is a historical figure dating back to the 13th century, who belonged to the 'Kayi tribe' and fought for his religion, conquering many lands in the way of Allah. He was the son of Suleyman Shah of Oghuz descent. Ertugrul's son, Osman, succeeded the throne and founded the Ottoman Empire around 1299.

=>It's a series my uncle fond of

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."