If there are any lingering doubts concerning when the past time period of 2014's X-Men: Days of Future Past takes place, director Bryan Singer's latest Tweet should clear them up.
Tuesday afternoon Singer tweeted what appears to be a prop from the in-production film (to your right) — a C.I.A report on Charles Xavier's Oxford thesis on "Human Genetic Mutation."
The kicker? The date on the bottom left — 1973, seeming conclusive confirmation the Days time period starring the younger version of the heroes (most notably James McAvoy and Michael Fassbender) will be '73, 11 years after First Class.
Last week Singer tweeted what appeared to be an image of the 'future'/present-day Beast.
X-Men: Days of Future Past is scheduled for release on July 18, 2014, with a cast including McAvoy, Fassbender, Jennifer Lawrence, Hugh Jackman, Patrick Stewart, Ian McKellen, Anna Paquin, Ellen Page, Nicholas Hoult, Shawn Ashmore, Peter Dinklage and Halle Berry.