Title: Textual criticism.
Question: Over approximately what expanse of time can textual criticism be applied to written works?

Title: Mexico City.
Question: The San Carlos Museum has art from who, among others?

Title: Separation of church and state in the United States.
Question: Who was the chief supporter of the bill that got Jefferson motivated to draft his Statute?

Title: Copyright infringement.
Question:
What was attempted to be amended in 2009 to support new ways to prevent copyright infringement?