A lot of literature, fictions, information, and knowledge is available in internet in public domainThere is a lot of data which is freely available in internet and no one has copyright on that. Mainly these are old religious books, novels and literary works by various authors in ancient times and even in mediaeval times. All this is actually a treasure house of information, knowledge, interesting facts, history, fiction, epics and many more categories.
We have to understand that though these things are freely available in the internet but we can't copy and paste them somewhere under our name because even copying these free materials will be considered as an act of plagiarism and is punishable.
Have you ever observed these materials from such point of view while surfing the internet and reading for making reference to any such past book of literature or knowledge as it is easily and freely available to us.