Roman Catholic Diocese of Sion Roman Catholic Diocese of Sion The Diocese of Sion (, , ) is a Roman Catholic ecclesiastical territory in the canton of Valais, Switzerland. It is the oldest bishopric in the country and one of the oldest north of the Alps. The history of the Bishops of Sion, of the Abbey of St. Maurice of Valais as a whole are inextricably intertwined. The see was established at Octodurum, now called Martigny, the capital of the Roman province of Alpes Poeninae. The first authentically historical bishop was Saint Theodore/Theodolus (died in 391), who was present at the Council of Aquileia in
Edward M. Sion Journal for six years. The Lebanese government founded a non-profit in 2007, which would become their national academy of sciences. Sion was invited to be a founding member of the national academy, the Lebanese Academy of Sciences, a clone of the French Academy of Sciences. Sion's studies of white dwarf stars has led to his publishing over 588 scientific articles of which 246 peer reviewed articles have appeared in journals such the Astrophysical Journal, Astronomical Journal, Astronomy and Astrophysics (the European Journal), Publications of the Astronomical Society of the Pacific, and the Monthly Notices of the Royal Astronomical Society. Sion