Bayer 1853—a modification of salicylic acid or salicin, a folk remedy found in the bark of the willow plant. By 1899 Bayer's trademark Aspirin was registered worldwide for Bayer's brand of acetylsalicylic acid, but it lost its trademark status in the United States, France and the United Kingdom after the confiscation of Bayer's US assets and trademarks during World War I by the United States, and because of the subsequent widespread usage of the word. The term "aspirin" continued to be used in the US, UK and France for all brands of the drug, but it is still a registered trademark
Asa language people once spoke Asa, but shifted to Nandi (as opposed to Maasai). Asa language The Asa (Aasá) language, commonly rendered Aasax, was spoken by the Asa people of Tanzania. The language is extinct; ethnic Assa in northern Tanzania remember only a few words they overheard their elders use, and none ever used it themselves. Little is known of the language; what is recorded was probably Aasa lexical words used in a register of Maasai like the mixed language Mbugu. Asa is usually classified as Cushitic, most closely related to Kw'adza. However, it might have retained a non-Cushitic layer from an