Kalevala may not be a so current topic, but some questions about it were never answered in a fully satisfactory way. What was Sampo, was it really a world pillar as Uno Harva explained, and if so, how can a world pillar have a handle, fall to the sea, and produce Bronze Age trade goods such as grain, salt and money (gold and silver). The article applies the following method to Kalevala: The starting points are, 1) Archeology has shown that Baltic Finns came to the Baltic shores during the Seima-Turbino phenomenon. 2) Many researchers suggest that Kalevala describes the Kaali meteorite. 3) Marjatta poems are from the time when Christianity came to Finland. It follows that Baltic Finns were creating poems during the whole time of their stay in the Baltic area.Considering that Elias L"onnrot and others gathered all poems they could find, the collected poems should contain poems from all of the times since the Nordic Bronze Age to the arrival of Christianity. By identifying which poems originate from which period, we can construct a history of Baltic Finns. The result agrees in much with the accepted view of the history of Baltic Finns, but it also changes the picture that has so far been obtained by other methods. Notably, Sampo is explained as a trade-agreement in the form of a written discand the method interprets Kullervo poems as describing a stage when Baltic Finns were a marginalized people pressed by Baltic peoples.