Question: When did the current central bank of the country Idi Amin visited twice, start quantitative easing?

full_context: Document 1: Hafizullah Amin: Hafizullah Amin (Pashto/Dari: حفيظ الله امين‎; born 1 August 1929 – 27 December 1979) was an Afghan communist politician during the Cold War. Amin was born in Paghman and educated at Kabul University, after which he started his career as a teacher. After a few years in that occupation, he went to the United States to study. He would visit the United States a second time before moving permanently to Afghanistan, and starting his career in radical politics. He ran as a candidate in the 1965 parliamentary election but failed to secure a seat. Amin was the only Khalqist elected to parliament in the 1969 parliamentary election, thus increasing his standing within the party. He was one of the leading organizers of the Saur Revolution which overthrew the government of Mohammad Daoud Khan. In 1979 he named himself president, prime minister, and chairman of the Khalq wing. He has been described as "ruthless" and a "radical Marxist".Amin's short-lived presidency was marked by controversies from beginning to end. He came to power by disposing of his predecessor Nur Muhammad Taraki and later ordering his death. Amin made attempts to win support from those who revolted against the communist regime which had begun under Taraki, but his government was unable to solve this problem. Many Afghans held Amin responsible for the regime's harshest measures, such as ordering thousands of executions. Thousands of people disappeared without trace during his time in office. The Soviet Union, which was dissatisfied with Amin, intervened in Afghanistan while invoking the Twenty-Year Treaty of Friendship between Afghanistan and the Soviet Union. Amin was assassinated by the Soviets on December 27, 1979 as part of Operation Storm-333, having ruled for slightly longer than three months.
Document 2: Federal Reserve Act: The Federal Reserve Act (ch. 6, 38 Stat. 251, enacted December 23, 1913, 12 U.S.C. § § 221 to 522) is an Act of Congress that created and established the Federal Reserve System (the central banking system of the United States), and which created the authority to issue Federal Reserve Notes (commonly known as the US Dollar) as legal tender. The Act was signed into law by President Woodrow Wilson.
Document 3: Federal Reserve: The Federal Reserve System (also known as the Federal Reserve or simply the Fed) is the central banking system of the United States of America. It was created on December 23, 1913, with the enactment of the Federal Reserve Act, after a series of financial panics (particularly the panic of 1907) led to the desire for central control of the monetary system in order to alleviate financial crises. Over the years, events such as the Great Depression in the 1930s and the Great Recession during the 2000s have led to the expansion of the roles and responsibilities of the Federal Reserve System.
Document 4: Federal Reserve: The Federal Reserve System (also known as the Federal Reserve or simply the Fed) is the central banking system of the United States. It was created on December 23, 1913, with the enactment of the Federal Reserve Act, after a series of financial panics (particularly the panic of 1907) led to the desire for central control of the monetary system in order to alleviate financial crises. Over the years, events such as the Great Depression in the 1930s and the Great Recession during the 2000s have led to the expansion of the roles and responsibilities of the Federal Reserve System.
Document 5: United States dollar: The monetary base consists of coins and Federal Reserve Notes in circulation outside the Federal Reserve Banks and the U.S. Treasury, plus deposits held by depository institutions at Federal Reserve Banks. The adjusted monetary base has increased from approximately 400 billion dollars in 1994, to 800 billion in 2005, and over 3000 billion in 2013. The amount of cash in circulation is increased (or decreased) by the actions of the Federal Reserve System. Eight times a year, the 12-person Federal Open Market Committee meet to determine U.S. monetary policy. Every business day, the Federal Reserve System engages in Open market operations to carry out that monetary policy. If the Federal Reserve desires to increase the money supply, it will buy securities (such as U.S. Treasury Bonds) anonymously from banks in exchange for dollars. Conversely, it will sell securities to the banks in exchange for dollars, to take dollars out of circulation.
Document 6: Husain al-Radi: Husain Ar-Radi (1924, Najaf – 24 February 1963, Baghdad), also known as Hashiim, 'Ammar, and Salam Adil, was an Iraqi communist politician as well as a poet and painter. He was the leader of the Iraqi Communist Party from 1955 until his death by execution or under torture after the Baathist coup in 1963.
Document 7: Currency war: During the Great Depression of the 1930s, most countries abandoned the gold standard. With widespread high unemployment, devaluations became common, a policy that has frequently been described as "beggar thy neighbour", in which countries purportedly compete to export unemployment. However, because the effects of a devaluation would soon be offset by a corresponding devaluation and in many cases retaliatory tariffs or other barriers by trading partners, few nations would gain an enduring advantage.
Document 8: Federal Reserve Act: The Federal Reserve Act (ch. 6, 38 Stat. 251, enacted December 23, 1913, 12 U.S.C. ch. 3) is an Act of Congress that created and established the Federal Reserve System, the central banking system of the United States, and which created the authority to issue Federal Reserve Notes (now commonly known as the U.S. Dollar) and Federal Reserve Bank Notes as legal tender. The Act was signed into law by President Woodrow Wilson.
Document 9: United States dollar: When the Federal Reserve makes a purchase, it credits the seller's reserve account (with the Federal Reserve). This money is not transferred from any existing funds—it is at this point that the Federal Reserve has created new high-powered money. Commercial banks can freely withdraw in cash any excess reserves from their reserve account at the Federal Reserve. To fulfill those requests, the Federal Reserve places an order for printed money from the U.S. Treasury Department. The Treasury Department in turn sends these requests to the Bureau of Engraving and Printing (to print new dollar bills) and the Bureau of the Mint (to stamp the coins).
Document 10: Great Depression: The Great Depression was a severe worldwide economic depression that took place mostly during the 1930s, originating in the United States. The timing of the Great Depression varied across nations; in most countries it started in 1929 and lasted until 1941. It was the longest, deepest, and most widespread depression of the 20th century. In the 21st century, the Great Depression is commonly used as an example of how far the world's economy can decline.
Document 11: Abdul Fattah Ismail: He served as Chairman of the Presidium of the Supreme People's Council (head of state) and founder, chief ideologue, and first leader of the Yemeni Socialist Party from 21 December 1978 to 21 April 1980. He was summarily executed on 13 January 1986 along with three others, allegedly for "plotting to overthrow" Ali Nasir Muhammad's regime.
Document 12: Quantitative easing: The US Federal Reserve belatedly implemented policies similar to the current quantitative easing during the Great Depression of the 1930s. Specifically, banks' excess reserves exceeded 6 percent in 1940, whereas they vanished during the entire postwar period until 2008. Despite this fact, many commentators called the scope of the Federal Reserve quantitative easing program after the 2008 crisis ``unprecedented ''.
Document 13: Charlie Wilson (Texas politician): In 1980, Wilson read an Associated Press dispatch on the congressional wires describing the refugees fleeing Soviet-occupied Afghanistan. The communist Democratic Republic of Afghanistan had taken over power during the Saur Revolution and asked the Soviet Union to help suppress resistance from the Mujahideen. According to biographer George Crile III, Wilson called the staff of the United States House Committee on Appropriations dealing with "black appropriations" and requested a two-fold appropriation increase for Afghanistan. Because Wilson had just been named to the House Appropriations Subcommittee on Defense (which is responsible for funding CIA operations), his request went through.
Document 14: United States dollar: The value of the U.S. dollar declined significantly during wartime, especially during the American Civil War, World War I, and World War II. The Federal Reserve, which was established in 1913, was designed to furnish an "elastic" currency subject to "substantial changes of quantity over short periods", which differed significantly from previous forms of high-powered money such as gold, national bank notes, and silver coins. Over the very long run, the prior gold standard kept prices stable—for instance, the price level and the value of the U.S. dollar in 1914 was not very different from the price level in the 1880s. The Federal Reserve initially succeeded in maintaining the value of the U.S. dollar and price stability, reversing the inflation caused by the First World War and stabilizing the value of the dollar during the 1920s, before presiding over a 30% deflation in U.S. prices in the 1930s.
Document 15: Soviet–Afghan War: That operation began at 19: 00 hr., when the KGB - led Soviet Zenith Group destroyed Kabul's communications hub, paralyzing Afghan military command. At 19: 15, the assault on Tajbeg Palace began; as planned, president Hafizullah Amin was killed. Simultaneously, other objectives were occupied (e.g., the Ministry of Interior at 19: 15). The operation was fully complete by the morning of December 28, 1979.
ground_truth: during the Great Depression of the 1930s
sub_queries: Where did Amin visit for the second time? Answer: United States
the current central bank of United States is Answer: Federal Reserve
when did Federal Reserve start quantitative easing Answer: during the Great Depression of the 1930s