Actors' Equity Association, the union representing stage actors and stage managers, turns 100 years old in 2013. Shaped by the inequities visited on performers in the 19th century, the union has shaped the landscape of the professional American theater. Founded in 1913, it became a force to be reckoned with in an historic 1919 strike - the most entertaining and dramatic one (naturally) the nation had ever seen. Since then, Equity has gone beyond securing...