Fly Agaric among the Koryaks in Langsdorff's Bemerkungen
A Kamchatka note on mushroom trade and intoxication
Langsdorff's 1812 German voyage account records fly agaric in Koryak trade with Russians and Kamchadals, noting in a footnote that Koryaks preferred it to brandy as a stupefying or intoxicating substance.
1812
Source
AnthropologyPsychoactive Plants
Georg Heinrich von Langsdorff