Vitamin C the inexpensive mass-production of vitamin C. In 1934 Hoffmann–La Roche trademarked synthetic vitamin C under the brand name Redoxon and began to market it as a dietary supplement. In 1907 a laboratory animal model which would help to identify the antiscorbutic factor was discovered by the Norwegian physicians Axel Holst and Theodor Frølich, who when studying shipboard beriberi, fed guinea pigs their test diet of grains and flour and were surprised when scurvy resulted instead of beriberi. By luck, this species did not make its own vitamin C, whereas mice and rats do. In 1912, the Polish biochemist Casimir Funk
Days Of Jubilee: The End of Slavery in the United States Days Of Jubilee: The End of Slavery in the United States Days Of Jubilee: The End of Slavery in the United States is a 2002 book by Patricia McKissack and Fredrick McKissack which sets out the history of Abolitionism in the United States. "BookList", in its review of "Days Of Jubilee", wrote "The balanced perspective, vivid telling, and well-chosen details give this book an immediacy that many history books lack. " and "School Library Journal" wrote "Readers familiar with Civil War history will be fascinated by the wealth of information on African Americans' contributions to the war effort, but those