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
Historian Reaction - Extra History's World War 1 - Part 1
Extra History's World War 1 - Part 4 (The Final Act) - Historian (*Emotional*) Reaction
World War I: The Seminal Tragedy by Extra Credits - McJibbin Reacts
The Zimmermann Telegram - Best of Frenemies - WWI History - Extra History
Joe Reacts: Extra History WW1: The Seminal Tragedy
Social Stud Reacts | World War I: The Seminal Tragedy - The Final Act - Extra History - #4
World War I: The Seminal Tragedy - The Final Act - Extra History - #4 REACTION!
The Seminal tragedy parts 1 & 2 | Extra History | Katze Reacts
Social Stud Reacts | World War I: The Seminal Tragedy - The Concert of Europe - Extra History - #1
Extra History's World War 1 - Part 2 (The Assassination of Franz Ferdinand) - Historian Reaction
American Reacts to World War I: The Seminal Tragedy (Part 1)
WWI The Seminal Tragedy The July Crisis By Extra Credits P3 | Chicago Couple Reacts
World War Zero - The Crimean War - European History - Part 1 - Extra History
World War I: The Seminal Tragedy - Extra History - REACTION Part Two
South Africa in WW1 I THE GREAT WAR Special feat. Extra Credits
