20/11/1978, Venice:
Official foundation of the Working Community.
 
11/9/1979, Graz:
1st Plenary Assembly with principal resolutions.
 
28–30/3/1983, Auronzo:
1st Alps-Adriatic Youth Games; these are held annually as summer or winter games alternately.
 
8/11/1984, Meran:
“Meran Manifesto“ on the occasion of the 2nd conference of Heads of Government of the Alps-Adriatic Working Community and the Alps Working Community “
 
3-4/6/1988, Millstatt:
“Millstatt Declaration“: on the occasion of the representatives of the corresponding state governments it is stated that the “activities and programme of the Alps-Adriatic Working Community... “are in Europe’s interest”.
 
26/11/1988, Venice:
“10th anniversary of the Alps Adriatic Working Community”: adoption of the first rules of procedure for organisation and financing 
 
3/7/1991, Klagenfurt:
Extraordinary Plenary Assembly on the occasion of the crisis in Yugoslavia 
 
20/9/1991, Linz:
Plenary Assembly adopts an amendment to the rules of procedure and executes a declaration on the tasks of the Working Community in a new Europe. 
 
14/2/1992, Zagreb:
Extraordinary Plenary Assembly - resolution on the ongoing collaboration between the states of Croatia and Slovenia.
 
27/11/1992, Gmunden:
The Plenary Assembly decides on three important issues:
 ·  the Alps-Adriatic Working Community’s collaboration with the Central European Initiative
 ·  the Alps-Adriatic Working Community’s joining with the Working Community of Europea Border       Regions (AEBR), and
 ·  the resolution regarding the situation in Bosnia and Herzegovina, particularly directed at the     UNO. 
 
25/11/1993, Balatonöszöd:
Plenary Assembly: declaration on the occasion of the Working Community’s 15th anniversary. Resolution regarding the situation in Croatia and Bosnia and Herzegovina (respect for territorial integrity).
 
24/11/1995, Maribor:
The Plenary Assembly adopts an amendment to the rules of procedure and the organisational scheme.
 
24/11/2000, Sárvár:
Plenary Assembly: further amendment to organisational rules and rules of procedure. The Carinthian Documentation Centre becomes the General Secretariat of the Alps-Adriatic Working Community.
 
9/3/2002, Venice:
Romano PRODI, President of the European Commission, takes part in an Alps-Adriatic Symposium on EU expansion
 
19/11/2002, Venice:
The Plenary Assembly decides on the idea of the Working Community’s role during the third millennium.

19-20/11/2003, Keszthely:
Plenary Assembly and celebratory session to mark the 25th anniversary of the founding of the Working Community.  
 
30/6/2006, Klagenfurt:
In occasion of an extraordinary Plenary Assembly it is decided on a broad structural reform of the Alps-Adriatic Working Community.