Literature, most generically, is any body of written works. More restrictively, literature writing is considered to be an art form, or any single writing deemed to have artistic or intellectual value, often due to deploying language in ways that differ from ordinary usage.
The death of Dr. Hudson is a loss to the republick of letters.
William King, letter (Jan. 7, 1719). Same phrase occurs in the Spectator. Commonwealth of letters is used by Addison, Spectator, No. 529. Nov. 6, 1712.
Under the auspices of an EU-funded project, researchers are working on ways to dispose of nuclear waste underground and seal it off with specialised plugs. If the project succeeds, the first permanent geological repositories could be operating in Europe by 2025.