Columbia subject headings:
Communication--Europe--History--16th century--Congresses.
Europe--Civilization--16th century--Congresses.
Printing--History--16th century--Congresses.
Printing--Influence--Congresses.
Reformation--Congresses.
Written communication--Technological innovations--History--16th century--Congresses.
Harvard subject headings:
Communication--Europe--History--16th century--Congresses.
Europe--Civilization--16th century--Congresses.
Printing--History--16th century--Congresses.
Printing--Influence--Congresses.
Reformation--Congresses
Written communication--Technological innovations--History--16th century--Congresses.
Princeton subject headings: