Interlingue
Kosmoglott changed its name to Cosmoglotta in 1927 and began promoting Occidental over other languages. In January of the same year, they moved Cosmoglotta's office to Vienna in the region of Mauer (now part of Liesing). This helped Occidental have success during this period because the office was now in a central location. Engelbert Pigal from Austria also helped with his article Li Ovre de Edgar de Wahl (The Work of Edgar de Wahl), which convinced some users of the Ido language to try Occidental. By early 1930, people were using Occidental in Germany, Austria, Sweden, Czechoslovakia, Switzerland, and most recently in France.