Attack on Titan: Explaining how Eren got the Founding Titan

[SPOILER ALERT] Attack on Titan season 4 took a much darker turn, compared to previous seasons of the series.

Attack On Titan: The Controversial Secret Behind The Ending's Reincarnation

Founding Titan, Attack on Titan Wiki

Attack on Titan 4×20 Review: “Memories of the Future” – The Geekiary

How did Eren activate founding Titan in Attack on Titan? - Quora

Attack on Titan

Attack on Titan' Fans Share Their Shock After 'Phenomenal' Eren Yeager Twist

so why did grisha give eren the attack and founding titans…?? : r/titanfolk

Attack on Titan Season 4: Finale recap and tragic ending explained - Hindustan Times

The Ending Of Attack On Titan Season 4 Part 3 Explained