When and how did Eren eat his father? - Quora

What happened to Eren's dad? - Quora

Why didn't Eren search for his father after the fall of Shiganshina? Did his father wipe his memory using the Founding Titan? - Quora

How did Eren's dad get the founding Titan's power without royal blood? - Quora

Why did Eren eat his dad? - Quora

Why does Eren's father eat the first Titan? - Quora

Did Eren ever find out his father's secret? - Quora

What happened to Eren's father in Attack on Titan? - Quora

How was Eren able to go back in time to influence his father to get the Founding Titan in Attack on Titan? - Quora

Why did Eren's father inject him? For what motive or reason? - Quora