25 Most Cruel Rulers In History

Adolf Hitler

Hands down, Adolf Hitler was one of the most notorious, evil, and destructive leaders in human history. With his angry hate-filled speeches, his ordering of Kristallnacht, his wanton invasion of European and African nations, and his ordering of millions of Jews being tortured, raped, and executed in concentration camps, plus countless other atrocities known and unknown, Hitler personifies hate and evil like few have before or since. In total, historians credit him with the deaths of 11 million people.