Birch bark

Birch bark or birchbark is usually the bark of the paper birch tree or sometimes of similar trees such as gray (wire) birch.

Birch bark is useful because it is strong and water-resistant. It is similar in some ways to cardboard. And can be easily cut, bent and sewn. Because of this it has been very valuable for building, crafting, and writing material ever since ancient times.  Birch bark also contains substances that are used in medicines and chemicals.

Uses
Birch bark was valuable throughout the world where birch trees were available:

In North America, the native people used birch bark for canoes and wigwams and more.
In Scandinavia and Finland, it had many uses, including roofs, boxes, casks and buckets.
In Russia, many birch bark documents have survived from the Middle Ages. 
In the Indian civilisation birch-bark, along with dried palm leaves,  replaced parchment for writing. 

Birch bark is can also be used as a tinder. It is very good tinder as the inner layers will stay dry even through heavy rainstorms.  To make birch bark useless as tinder, it must be soaked in water for a very long time.

References
The Algonquin Birchbark Canoe by David Gidmark .  

Other websites

The Birch Bark Torch , a Wilderness Way Magazine'''s article by Kevin Finney.
Birchbark articles from the NativeTech'' site.
Birch and Birch Bark, an article by John Zasada at an University of Minnesota site.
Birch Bark Canoe Building Courses at the North House Folk School, Minnesota.
Birch Bark Canoe  page on the site of the Algonquins of Pikwàganagàn.

Category:Wood
Category:Fagales