70s baby! All about Halston, Gucci and Pucci. I am afraid I would live at studio 54 just for the glam aspect! Think Amy Adams in American Hustle. I did a post on the film's fashion http://bit.ly/1ioA8dq (part 1) and http://bit.ly/1rbQtCo (part 2).
Hmm... that's a hard one! I think might go back even further and say something like the 20's. Mainly because I absolutely fell in love with all of the party dresses and head pieces that the women wear in The Great Gatsby - and don't even get me started on the 'flapper' dresses! x