সঠিক উত্তর হচ্ছে: ১৯৬৯ সালে
ব্যাখ্যা: SDR (Special drawing rights) are supplementary foreign exchange reserve assets defined and maintained by the International Monetary Fund. SDRs are units of account for the IMF, and not a currency per se. They represent a claim to currency held by IMF member countries for which they may be exchanged. \nDate of introduction of SDR: 1969\n[Source: www.imf.org. ]