When the Communists and Vladimir Lenin took over Russia in 1917, they repudiated old czarist debts and the country defaulted on its foreign obligations -- the largest sovereign default in history.
원문출처 : https://www.cnn.com/2022/03/14/politics/russia-economy-sanctions-ruble-what-matters/index.html
원문출처 : https://www.cnn.com/2022/03/14/politics/russia-economy-sanctions-ruble-what-matters/index.html