Board Thread:Manga/@comment-27938131-20170808181809/@comment-28958062-20170814084305

Arshpar wrote: YEAR 820 - Zeke was born

827 - Zeke[7] Betrayed Grisha & Dina - Grisha & Dina sent to Paradise(?) - Grisha inherited the Attack Titan from Eren Kruger(?)

835 - Eren Jaeger was born

842 - Zeke[22] inherited the Beast Titan

843 - Reiner, Bertholdt, Annie & Marcel inherited the Armoured, Colossal, Female and Jaws Titan - Pieck inherited the Cart Titan(?)

845 - Fall of Shiganshina - Frieda Reiss killed by Grisha; Progenitor Titan inherited by Grisha - Eren[10] Jaeger inherited the Attack and Progenitor Titan; Grisha died.

850 - Battle of Trost - Zeke[30] infiltrated Wall Maria - Porco Galliard inherited the Jaws Titan; Ymir died(?) - Armin inherited the Colossal Titan; Bertholdt died.

Based on this, Grisha is a Titan Shifter between 827 to 845, for 18 years! 😨

This is according to the AoT guidebook aand now we know the thirteen year curse is just Marley's propaganda to keep the shifters in line so they never think about rebelling.