The Holocaust perpetrated by Nazi Germany was inarguably one of the worst events of the 20th century. Six million Jews and millions of others (gay people, those with disabilities, Roma, and more) were massacred, while many others became refugees or went into hiding.
Unfortunately, these kinds of historical tragedies aren't limited to just Nazi Germany. We've seen this kind of genocide before, but humans have an alarming propensity to gloss over the dark parts of our history. Some genocides were even turned into holidays that celebrate the perpetrators' success. We don't often hear much about these obscure historical pogroms, because as they say, history is written by the victors.
Maybe it’s important, then, to discuss even those genocides throughout history that aren’t as well-known. By keeping these victims alive in our minds and hearts, we may be able to prevent similar catastrophes in the future. That's the whole point of being human, right? Over time, we get better. It does, however, behoove us to remember the times when we were at our worst.