Vag, Waag and Other Names: Which Place Name to Use - Why and When?

I suggest using the modern name with Vag Besztercze in parentheses.

The Territory of today's Slovakia belonged to the Kingdom of Hungary until 1920, for more than 1000 years. The name of Vág (Vah) is a river, but also on behalf of many village as in the name of the one town Vágsellye (Šaľa).
District: present „Vágsellyei járás” - Okres Šaľa /in English Šaľa District/ until 1920 was one of the earlier Nitra county administrative subdivision.

I think the correct name before 1919/1920:

*Vág - Vah (the river)
*Vágsellye - a city; County: Nyitra vármegye – (present Nyitra körzet - Nitriansky kraj) / in English Nitra county/; State/Country: Magyarország - Hungary (present Slovakia)

*Vágsellyei körzet - Okres Šaľa / in English District Šaľa/ (the other names as the central city)

*Vágbeszterce - Považská Bystrica
**District: Vágbesztercei járás –Okres Považská Bystrica / in english Považská Bystrica District
**County: Trencsén vármegye (present Trencséni kerület - Trenčiansky kraj)
**State/Country: Magyarország Hungary (present Slovakia)

Mihály

The Territory of today's Slovakia belonged 1867-1920 to the Austro-Hungarian Empire as part of Kingdom of Hungary. North from Danube lived together Slovakian, Hungarian and Austrian (and many from Germany) people. The name of towns and the villages were in three various languages, but until 1836 the official language was the Latin. Such is the history of Hungary.

Mihály

Other example: Bratislava name before 1918 in Slovakian Prešporok; German: Pressburg or Preßburg; Latin: Posonium; Hungarian: Pozsony.

The history of the city has been strongly influenced by people of different nations and religions, namely by Austrians, Czechs, Germans, Hungarians, Jews, Serbs and Slovaks (in alphabetical order, not significance).[5] The city was the capital of the Kingdom of Hungary, a part of the larger Habsburg Monarchy territories,[6] from 1536 to 1783 and has been home to many Slovak, Hungarian and German historical figures.

On 19th century more Austrian and German people lived in Pest (bigger part of Budapest), than Hungarian.

Mihály