Twenty years of the Armenian Astronomical Society (ArAS)

A review on the activities and achievements of the Armenian Astronomical Society (ArAS) and the Armenian astronomy in general is given on the occasion of the 20th anniversary of the official foundation of ArAS. ArAS membership, ArAS electronic newsletters (ArASNews), ArAS webpage, Annual Meetings, Annual Prize for Young Astronomers (Yervant Terzian Prize) and other awards, international relations, participation in international organizations, Byurakan International Summer Schools (BISS), regional and local schools, Byurakan science camps, astronomical Olympiads and other events, other matters related to astronomical education, astronomical heritage, amateur astronomy, astronomy outreach and ArAS further projects are described and discussed.