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) ..
Duncan Hines introduced a Three Star Special (so called because a white, yellow or chocolate cake could be made from the same mix) was introduced three years after cake mixes from General Mills and Duncan Hines, and took over 48 percent of the market.