Well, it's hard to say for sure. The real story has a lot of eyewitness accounts, but no conclusive proof. Some believe that the Mothman is real because so many people claimed to have seen it. However, others think it could be a case of mass hysteria or misidentifying common animals like large birds or bats.
Yes, it was. '300' is loosely based on historical events. The movie depicted the Spartans' battle against the Persians. The real Battle of Thermopylae was a significant event in ancient history. The Spartans' reputation for being fierce warriors was accurately represented in the movie. Their unique fighting style and their willingness to fight to the death were real aspects of Spartan culture. But the movie also added some fictional elements like the grotesque and superhuman - looking enemies to make it more visually appealing.