Thank you, Ewa for your information. The Dnieper or Dnipro is one of the major rivers of Europe, rising in the Valdai Hills near Smolensk, Russia, before flowing through Belarus and Ukraine to the Black Sea. It is the longest river of Ukraine and Belarus and the fourth-longest river in Europe, after the Volga, Danube, and Ural rivers. Wikipedia Samara culture is the archaeological term for an eneolithic culture that bloomed around the turn of the 5th millennium BCE, located in the Samara bend region of the upper Volga River. Wikipedia And now this: The Samara culture was an eneolithic culture of the early 5th millennium BCE at the Samara bend region of the middle Volga, at the northern edge of the steppe zone. It was discovered during … Continue reading Where in the world does the Rh negative blood factor come from?