Ch. 1 - Grisha is looking at where old Eren is supposed to be standing during the visit to Grisha's memories. : r/titanfolk

How did Grisha know that the memory he was seeing was from Eren? Didn't he only see the memory from eren's POV? - Quora

What did eren show grisha to convince him to give eren his titan? (Before the retcon) : r/titanfolk

What Grisha saw in Eren's memories vs the Ending - Forums

How did Grisha know that the memory he was seeing was from Eren? Didn't he only see the memory from eren's POV? - Quora

Memories of the Future (Episode), Attack on Titan Wiki

Armin destroys Eren with Facts and Logic™ : r/titanfolk

If you could rewrite Attack on Titan, what would you write? - Quora

Enemies of Humanity: The Lamp and the Apple Abridged

Eren was hellbent on saving Historia because he was being influenced by Frieda's memories : r/titanfolk