On Monday, 21st March 2011 at 7pm the Zagreb Classical Gymnasium Association, now our regular hosts for the Tribunes, organized as part of their regular meetings, a lecture by Željko Heimer “Reflection of Water in the Croatian Municipal Heraldry“, on the occasion of the first day of spring and the international day of waters. With the full auditorium of the former Gymnasium students the lecture was followed by an interesting discussion that continued afterward with a light cocktail.