"January 26 15" at the top. I mean, even translating that from American date format, it still doesn't make sense unless the poster was originally made for Australia day 2015..
Again though, nothing against the statement being made, I am in the "Australia day isn't a celebration" camp too. Just a shame the date format isn't Australian date format. It detracts from the effectiveness of the statement by making the incorrect date format the focus, rather than the statement being made.