Aspirin strokes. Bayer lost its trademark for Aspirin in the United States in 1918 because it had failed to use the name for its own product and had for years allowed the use of "Aspirin" by other manufacturers . Today, aspirin is a generic trademark in many countries. Aspirin, with a capital "A", remains a registered trademark of Bayer in Germany, Canada, Mexico, and in over 80 other countries, for acetylsalicylic acid in all markets, but using different packaging and physical aspects for each. Aspirin is sometimes used in veterinary medicine as an anticoagulant or to relieve pain associated with musculoskeletal
Birch bark manuscript In Indian sculpture, a Birch bark manuscript is easily identified by the droop. A palm leaf manuscript is stiff. On July 26, 1951, during excavations in Novgorod, a Soviet expedition led by Artemiy Artsikhovsky found the first Russian birch bark writing in a layer dated to c. 1400. Since then, more than 1,000 similar documents were discovered in Staraya Russa, Smolensk, Torzhok, Pskov, Tver, Moscow, Ryazan, and Vologda, although Novgorod remains by far the most prolific source of them. In Ukraine, birch bark documents were found in Zvenyhorod, Volynia. In Belarus, several documents were unearthed in Vitebsk and Mstislavl. The