Does posting videos help the status of your pubs if they are relevant videos?

You shouldn't over do videos. I've published some very long hubs with LOTS of videos - but I've learned that internet readers don't typically read five thousand word web pages, and too many videos makes a page take longer to load. Google ranks fast loading web pages higher than slow loading web pages.

But I pretty much always like to add a video to every hub if I can find a relevant one to add.

Aas long as you tag the videos accordingly they should help in readership. As far as the grading of your hub, I have not noticed a difference.

Absolutely yes, if the videos are link to URL, if the visitors open it then it's your advantage.

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.