Is it okay to copy and publish my old article from my other blogsite to Hubpages? Thank you?

You can copy it here if you delete the original. Then you should wait a while until it is de-indexed by Google. After that there should be no problem as long as it fits the TOS and is not too personal.

No that is not a good idea. If you wish to publish an article on the same subject you need to rewrite the article. Hubpages is firmly against duplicate content which is what you will be doing.

You run the risk of having you hub unpublished and if it's something that you continue to do you also run the risk of having your account closed. I say rewrite the content and try to publish it and see what happens. But my best advice is to publish something totally new from a different subject altogether.

Hubpages requires all content to be original and not published elsewhere.

No you can not because this would be content trafficing case.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.