From ancient conflicts to modern warfare, history is marked by acts of unprecedented brutality. Join us as we examine the most devastating military decisions that shaped our world. These shocking events demonstrate how single actions can trigger catastrophic consequences and change the course of history forever.

From humble beginnings to viral sensations, join us as we explore the most influential uploads that shaped online video culture! These groundbreaking clips didn't just get views - they created trends, launched careers, and forever changed how we share content online. Which iconic video defined YouTube for you? Our countdown includes viral hits like "Charlie Bit My Finger," "Gangnam Style," "Evolution of Dance," plus groundbreaking moments that transformed online entertainment. From cute kids to music phenomenons, these videos made history!

From backstabbing allies to selling out countries, history is filled with shocking acts of treachery. Join us as we explore the most devastating betrayals that changed the course of history! Our countdown includes those who betrayed their nations, leaders who turned on their people, and individuals who sold secrets to enemies for personal gain.

Step into the haunting world of "Sinners" as we explore why Ryan Coogler's genre-bending vampire tale is captivating audiences! From its impressive $48 million opening weekend to its "A" CinemaScore, this original horror film is proving that fresh ideas can still thrive at the box office. Discover how Coogler blends horror with history, music, and personal family connections to create a cinematic experience that transcends traditional genre boundaries.

From systematic persecution to mass killings, humanity has witnessed unspeakable acts of cruelty throughout history. Join us as we examine some of the darkest chapters of our past, including state-sponsored violence, genocides, and systematic oppression that have left permanent scars on human civilization.

From political battles to actual warfare, America has experienced deep divides throughout its history. Join us as we explore the moments when the United States was most fractured along ideological, racial, and political lines. These watershed periods didn't just divide citizens temporarily—they fundamentally altered the nation's trajectory and continue to influence American society today.

These iconic European rulers are the gold standard when it comes to running an empire. Welcome to WatchMojo, and today we’re counting down our picks for the best European monarchs from across all of history.

These decades changed everything. Welcome to WatchMojo, and today we’ll be looking at the most significant ten-year spans throughout all of human history.

From ancient eruptions to modern nuclear meltdowns, these catastrophes forever altered human history. Join us as we explore devastating events that shaped our world in unexpected ways. From engineering failures to natural calamities, these disasters taught humanity painful but necessary lessons that changed how we build, travel, and respond to future threats.

Prepare to dive into some of history's most perplexing and forgotten enigmas. From mysterious disappearances to unexplained phenomena, these cases have baffled investigators and researchers for generations. Join us as we explore these unsettling events that time has nearly erased from our collective memory.

Dive into a riveting exploration of pivotal moments that shaped American history. From wartime decisions to political scandals, we uncover the mistakes that dramatically altered the course of the nation's trajectory and left an indelible mark on global events.

Dive into the most catastrophic political blunders that dramatically altered the course of world history. From disastrous military decisions to critical mistranslations, these moments reveal how a single mistake can reshape entire civilizations and global power dynamics.

Prepare to have your heartstrings tugged as we dive into the most devastating and emotional moments in television history. From unexpected deaths to gut-wrenching goodbyes, these scenes will make even the toughest viewers reach for the tissues.

Throughout history, humanity has faced numerous high-stakes moments that could have ended in total catastrophe. From nuclear close calls to military gambles, we'll explore the most dangerous risks that nearly destroyed everything, revealing how thin the line between survival and annihilation can be.

Prepare to be shocked as we dive into the darkest, most horrifying moments in human history that are often glossed over. From wartime atrocities to systematic persecution, these stories reveal the depths of human cruelty that textbooks rarely explore in full detail.