The early history of Poland might be thought to begin in the 6th and 8th centuries A.D.
During 6th and 8th centuries lands between the Vistula and Oder
Rivers were inhabited by several West Slav? tribes.
Over time in the long
process of struggle for power the most prominent one turned out to be Polanians
(Polans or in Polish Polanie). Other tribes included the Vistulanians, Goplans,
Opolans, Silesians, Obodritians and Pomeranians.
(How should we link those tribal groups? A question for the historians!)
There were several strong tribes but after some time of fight for power the tribe called Polanians (or Polans or in Polish Polanie) came into prominence. In the middle of the 9th century they started massive expansion to the neigbouring territories and consequently pushed away Popielid dynasty. From that period emerges one single ruler Mieszko I of [Piast dynasty]? (born ca 930 AD). Lands under Duke Mieszko's rule encompassed the following regions: Greater Poland, probably Lesser Poland, surely Silesia, Eastern Pomerania and Western Pomerania, it was something like 250,000 km2, with population of about 1 million people. The real Poland's sovereign state history begins with the duke. Soon he married a Czech princess Dobrava and was baptized into the Roman branch of Christianity in 966 AD. It started widespread conversion to Christianity of his kingdom and was also a fact of political significance. It marked the incorporation of Poland into the Christian western world. Moreover he allied with the Czech to make his kingdom independent from the Germans - in fact he was christianed by Czech clergy and married to a Czech princess. Poland became a Christian state and the date 966 AD it widely regarded a stepping stone for the future of the whole following Polish history.