Valentine's Day buy presents for their partners. The holiday has only been observed since the 1960s. In Spain, Valentine's Day is known as "San Valentín" and is celebrated the same way as in the rest of the West. Informational notes Citations Bibliography Valentine's Day Valentine's Day, also called Saint Valentine's Day or the Feast of Saint Valentine, is celebrated annually on February 14. Originating as a Western Christian feast day honoring one or two early saints named Valentinus, Valentine's Day is recognized as a significant cultural, religious, and commercial celebration of romance and romantic love in many regions around the world, although
Joan S. Valentine Joan S. Valentine Joan Selverstone Valentine (born 1945) is a biological inorganic chemist and biochemist. Valentine's current work examines the role of transition metals, metalloenzymes, and oxidative stress in health. Her foremost expertise is superoxide anion and its functional enzyme superoxide dismutase. Valentine has been a member of the faculty of the University of California, Los Angeles since 1980, she has served as Editor-in-Chief of "Accounts of Chemical Research" since 1994, and she was elected to the National Academy of Sciences in 2005. In 1967, she graduated with a Bachelor of Arts in Chemistry from Smith College and a Ph.D.