This summary of key topics is based on information contained in the transcript of an interview with Professor Andrzej Buko: Methods and Challenges in the Study of the Origins of Poland: The study of the origins of the Polish state is interdisciplinary, involving archaeology, written sources, art history, architectural history, linguistics and modern methods such as archaeometric, isotopic, genetic and C14 studies. Dendrochronology has revolutionized dating, making it possible to determine the year the wood was felled with the precision of a year, and significantly changing the dating of early settlements, especially in Greater Poland . The study of the Slavs is hampered by the fact that they often burned their dead, resulting in a lack of research material (skeletal) between the first centuries AD and the 11th century . Origin and Ethnic Composition of the Slavs and Mazovians : There is an ongoing dispute over whether the Slavs evolved in Central Europe or migrated from outside; genetic studies (e.g., by Prof. Figlerowicz) suggest that the migration factor is not necessary to explain the Slav phenomenon in a genetic context . The genetic composition of the ancient and early medieval population shows a very strong male trace from northwestern Europe and a strong female trace related to the Old European (indigenous) population . Mazovian (indigenous Polish genetically) is a mixture of Old European, Balts, nomads (with an indication of Avars), without traces of Scandinavian haplogroups in the tombs studied . Diet was a strong ethno-cultural differentiator: Slavs were associated with millet, a thermophilic and sustainable grain, often consumed by nomadic peoples (in contrast to the Germans, where other grains predominated) . The term "ethnic group" is preferred over "tribe" in the context of the early Middle Ages because of the mixing of populations and the fact that identity was based on a sense of community rather than solely on genetic descent . Origins of Statehood and the Greater vs. Lesser Poland Dispute: Most researchers favor Greater Poland as the motherland of statehood, based on the account of Gallus Anonymus . Dendrochronological dating has shown that the land of Gniezno was landless before 940, which calls into question Gniezno as the center of Mieszko's predecessors (Piaścice) . Alternative centers in Greater Poland include Giecz (dated to around 860, but peripheral) and Kalisz, which had developed continuously since antiquity, had a rich settlement base and two castles . The concept is that the Piast state was able to gain military and financial strength by exploiting the slave trade, which was a source of huge amounts of silver . Expansion of the Piast State and Key Regions (70s and 80s of the 10th century) : Expansion followed the construction of the core of the Gniezno state (by the 60s of the 10th century) . Sandomierz and Eastern Lesser Poland: Probably the first investment of the Piasts outside Greater Poland (1870s of the 10th century), building a strategic eastern flank (Opatów, Zawichost, Przemyśl) . Mazovia: Attached in the 70s of the 10th century (e.g. Plock 978, Swiesk Strumiany), with visible influences of early Piast construction (hook construction) . Plock may have been initially inaccessible for symbolic/pagan cult reasons . Gdansk (Vistula Pomerania): The center was populous and functioning as early as 997 (St. Adalbert's mission), although the dating of the castle is disputed. This is another area where the hook structure characteristic of the Piasts appeared . Silesia and Western Pomerania: Attached in the 1080s (Wroclaw, Glogow, Opole; Szczecin, Kolobrzeg) . Krakow Land/Cracow: Last area annexed (c. 987-989), probably without fighting or destruction . Krakow was a metropolis as early as the 10th century (City State), characterized by unique white ceramics and monumental mounds (Krakus and Wanda), having analogues in Scandinavia and Bulgaria, which distinguishes it from Moravia . Presence of Foreign Elites: Archaeologically confirmed the presence of mercenary squads (Scandinavians) in the Polish lands (e.g., cemeteries in Ciepło, Bodzi, Łubów), with Scandinavian-type burials . Czerwieńskie Grody, including Czermno (Czerwień), was the largest agglomeration of fortified settlements in this borderland and was active from the late 10th century . Unsolved Mysteries: It is not known where the first Piasts (Mieszko I, Bolesław Chrobry, Dąbrówka) were buried, as the tombs of the most prominent rulers were targeted for looting . It is not clear who the Piasts were before the Piasts . The phenomenon of the Polans is a mystery; the name does not appear in documents related to Mieszko, it appears only in the context of the Brave and may be an ethnonym associated with the leader (Prince Boleslaw Polanski) . This patchwork of research and discoveries about the origins of the Polish state can be compared to the reconstruction of a lost painting, where archaeology, genetics and dendrochronology provide fragments that must be assembled and dated with precision to reveal a hidden history that often differs from legends to date.