How can I create a searchable attribute for a page on Confluence wiki?

The easiest way is to just add specific labels to that page .. e.g. "info1" and "info2" . Afterwards you're able to search for that page using the normal Confluence search and searching for labelText:info1 and labelText:info2 .

You can use a SQL query to search the Confluence storage format (XML source) of your pages.

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.