World War I: The Seminal Tragedy - The Concert of Europe - Extra History - Part 1
World War I: The Seminal Tragedy - One Fateful Day in June - Extra History - Part 2
World War I: The Seminal Tragedy - The Final Act - Extra History - Part 4
World War I: The Seminal Tragedy - The July Crisis - Extra History - Part 3
World War I: The Seminal Tragedy - Lies - Extra History
World War I: The Seminal Tragedy by Extra Credits - McJibbin Reacts
WWI The Seminal Tragedy The Final Act By Extra Credits P4 | Chicago Couple Reacts
The Zimmermann Telegram - Best of Frenemies - WWI History - Extra History
Mr. Giant Reacts: World War I: The Seminal Tragedy The Concert of Europe Extra History #1 (REACTION)
World War I The Seminal Tragedy One Fateful Day in June Extra History #2 - reaction
Extra History's World War 1 - Part 4 (The Final Act) - Historian (*Emotional*) Reaction
World War I: The Seminal Tragedy - The Final Act - Extra History - #4 REACTION!
World War I The Seminal Tragedy The Concert of Europe Extra History #1 - REACTION
World War I The Seminal Tragedy The Final Act Extra History #4 - REACTION
WWI The Seminal Tragedy The Concert Of Europe By Extra Credits P1 | Chicago Couple Reacts
Historian Reaction - Extra History's World War 1 - Part 1
American Reacts to World War I: The Seminal Tragedy (Part 1)
World War I The Seminal Tragedy The July Crisis Extra History #3 - REACTION
Texan Reacts to World War 1: The Seminal Tragedy Pt.4 by Extra History
The Seminal Tragedy Part 2 by Extra Credits - McJibbin Reacts
