The Republic of Estonia was recognised ("de jure") by Finland on 7 July 1920, Poland on 31 December 1920, Argentina on 12 January 1921, by the Western Allies on 26 January 1921 and by India on 22 September 1921. In 1921, Estonia became a full member of the League of Nations and developed successful economic relations with many countries, including the Soviet Union. The backbone of the Estonian economy became agricultural exports to the West, due to tens of thousands of small farm holdings being established as a result of land reforms that ended the Baltic German economic dominance. A new currency, the Estonian kroon, was introduced in 1928.