*Laughter is man’s most distinctive emotional expression.* [*Margaret Mead*](http://www.goodreads.com/author/show/61107.Margaret_Mead?utm_medium=email&utm_source=quote_of_the_day) August 31, 1925: On this day, American cultural anthropologist Margaret Mead set foot in Samoa for the first time. Her research there became the basis for Coming of Age in Samoa, a book that quickly made Mead the most famous anthropologist in the world.