There never was a Cuban Nationalist Party. There was a Cuban National Party, but it disbanded in 1901, when my grandfather was 6 years old.

ChatGPT has amazing access to information, but sometimes it is just dead wrong.
It should not be trusted as far as veracity or completeness is concerned, I do not find it a fault for not knowing stuff, but I fear it has a tendency to just make things up. That makes for a very unreliable research assistant.

For example, my grandfather never dubbed for television. In 1910, during his reputed role in the cigar factory strike, my grandfather was still a teenager, living in Cuba. And the Tampa cigar workers strike didn't occur until the 1930s.

I can understand chatgpt not being able to access information, or perhaps accessing bad information, but I can't explain why
it is providing non-existent information,