Category
page 1Birch bark
birch bark
bark of several Eurasian and North American birch trees of the genus Betula
birch bark manuscript
document written on pieces of the inner layer of birch bark
Bakhshali manuscript
group of mathematical manuscripts including an early use of the positional zero
betulin
Betulin is an abundant, naturally occurring triterpene. It is commonly isolated from the bark of birch trees, hence its name, from betula. It forms up to 30% of the dry weight of silver birch bark. It is also found in birch sap. Inonotus obliquus contains betulin.
Gandhāran Buddhist texts
Ancient Buddhist texts
Birch bark letter no. 292
oldest document in any Finnic language