Originally Posted by Numinous
It wasn't, it is simply deduction. Considering he said it was anniversary of both Rin and Kushina's death and it's impossible to be in the same year (since Obito attacked Konoha precisely because of Rin's Death) and between Kakashi Gaiden and the Kyuubi Incident was barely an year, the deaths had to be an year apart, but the problem is that considering both Kakashi and Obito's age and birthdays, Rin's death shouldn't have happened in October, meaning Kishimoto fucked up his timeline.
Oh... ok. I get where you're saying. Actually, if we did the timelines... wouldn't that technically mean that Kushina died before Rin?