Why did Cleopatra have baths of milk?

She didn't. That is just one of the many myths that have grown around Cleopatra. In the hot climate of Egypt milk would curdle, sour and stink in a short time, remember there was no refrigeration.No one would put their body into that gunk.

However she may have used milk as an ingredient in some other skin preparation such as a softening lotion.

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.