mental illness â(countable and uncountable, plural mental illnesses) ( 1 uncountable) The property of being mentally ill; mental disorders taken as a whole.  2006, R. Keith Sawyer, Explaining Creativity: The Science of Human Innovation, Oxford University Press US, ISBN 9780195161649, page 87:
The first Valentine's Day box of chocolates was introduced by who? Richard Cadbury introduced the first Valentine's Day box of chocolates in the 1800's. Source:(Fun facts about Valentine's Day , msn lifestyle) ..
Esther Howland of Worcester, Mass., published the first American valentine in 1849. Hallmark first offered Valentineâs Day cards in 1913 and began producing them in 1916. In addition to the United States, Valentineâs Day is celebrated in Canada, Mexico, United Kingdom, France, Australia, Denmark and Italy. 1910s. Valentines pre-date Hallmark and were among the first types of cards the company offered.