History of Latvia forests were another export revenue source. On March 27, 1919 the Latvian rublis was introduced with an exchange rate of 1 Latvian rublis equal to 1 ostruble, 2 German marks and 1,5 czar rubles. On March 18, 1920 Latvian rublis was made the only legal currency. Due to high inflation, the new Latvian lats currency was introduced at a rate 1 lat to 50 rublis. In 1923 the Bank of Latvia was established and lats replaced rublis in 1925. Between 1923 and 1930 state budget was with a surplus. On average 25,5% went to defense, 11,2% to education and 23,4%
Baltic State Opera opera "Madame Curie". This work was commissioned by the Baltic Opera, although its first performance took place in Paris in November 2011, within the framework of the Cultural Programme of the Polish Presidency of the EU Council. "Madame Curie" was also the first production in the Opera Gedanensis series, a project which is being realised by the Baltic Opera. Outside of the major operatic repertoire, Polish premieres which took place in the Baltic Opera include: Notes Baltic State Opera Baltic Opera (formerly Baltic State Opera) is an opera company located in Gdańsk, Poland. It began in February 1949 as the