In a remote excavation on the Kuril Islands, researchers have unearthed manganese-painted whale-bone sound-boards dating back four millennia. These percussive instruments were used in elaborate ceremonies designed to appease the spirits of the drifting pack ice during the early spring thaw.
Chemical analysis of the pigments reveals a unique mixture of manganese and seal oil, used to create intricate geometric patterns that researchers believe represented the cracking of frozen seas. This discovery highlights the spiritual significance of the maritime environment for prehistoric North Pacific societies.