there is no historical evidence or credible information to suggest that the infamous pirate Blackbeard (Edward Teach) had a split personality or was diagnosed with any dissociative disorders, such as Dissociative Identity Disorder (DID) or Other Specified Dissociative Disorder (OSDD).
Blackbeard was a real historical figure who lived in the early 18th century and was known for his piracy activities in the Caribbean and along the American colonies' eastern seaboard. He was a fearsome and notorious pirate, often depicted with a long black beard, after which he earned his nickname.
It's important to distinguish between historical facts and fictional portrayals. While some fictional stories or adaptations might depict historical figures or characters with split personalities or other psychological conditions for dramatic effect, these are artistic interpretations and not based on historical evidence.
As with any historical figure, our knowledge of Blackbeard is limited to historical records, accounts, and artifacts from the time. There is no evidence to support the idea that he had a split personality or any specific mental health condition.
If you come across such depictions in fictional works, it's essential to recognize them as creative interpretations rather than historical facts. If you're interested in learning more about Blackbeard or any historical figure, consider referring to reputable historical sources and scholarly works for accurate information.