A.E.I.O.U.

"A.E.I.O.U." (sometimes A.E.I.O.V.) was a symbolic device coined by Frederick III (1415–1493) and historically used as a motto by the Habsburgs. One note in his notebook (discovered in 1666), though not in the same hand, explains it in German and Latin as "All the world is subject to Austria" (Alles Erdreich ist Österreich untertan or Austriae est imperare orbi universo). Frederick habitually signed buildings such as Burg Wiener Neustadt or Graz Cathedral as well as his tableware and other objects with the vowel graphemes. As of 2017, A.E.I.O.U. is the motto of the Theresian Military Academy, established in 1751. It can also be found on the wall of the Chancellor's office in the Federal Chancellery.

A.E.I.O.U.

"A.E.I.O.U." (sometimes A.E.I.O.V.) was a symbolic device coined by Frederick III (1415–1493) and historically used as a motto by the Habsburgs. One note in his notebook (discovered in 1666), though not in the same hand, explains it in German and Latin as "All the world is subject to Austria" (Alles Erdreich ist Österreich untertan or Austriae est imperare orbi universo). Frederick habitually signed buildings such as Burg Wiener Neustadt or Graz Cathedral as well as his tableware and other objects with the vowel graphemes. As of 2017, A.E.I.O.U. is the motto of the Theresian Military Academy, established in 1751. It can also be found on the wall of the Chancellor's office in the Federal Chancellery.