Question: When was america taken off the gold standard?

Disambiguated questions and answers:
context: During the Great Depression, every major currency abandoned the gold standard. Among the earliest, the Bank of England abandoned the gold standard in 1931 as speculators demanded gold in exchange for currency notes or in settlement of debts, threatening the solvency of the British monetary system. This pattern repeated throughout Europe and North America. In the United States, the Federal Reserve was forced to raise interest rates in order to protect the gold standard for the US dollar, worsening already severe domestic economic pressures. After bank runs became more pronounced in early 1933, people began to hoard gold coins as distrust for banks led to distrust for paper money, worsening deflation and depleting gold reserves.
question: When was America taken off the gold standard, but still allowed foreign governments to trade dollars for gold?
short_answers: 1933
wikipage: History of the United States dollar

context: No context provided
question: When was america taken off the gold standard and put on the gold exchange standard?
short_answers: 1944

context: No context provided
question: When was America completely taken off the gold standard?
short_answers: August 15, 1971

Long answers:
knowledge: content: Upon taking office in March 1933, U.S. President Franklin D. Roosevelt departed from the gold standard.
wikipage: Gold standard

content: On 15 August 1971, the United States unilaterally terminated convertibility of the US dollar to gold, effectively bringing the Bretton Woods system to an end and rendering the dollar a fiat currency.
wikipage: Bretton Woods system

content: The Bretton Woods system of monetary management established the rules for commercial and financial relations among the United States, Canada, Western European countries, Australia, and Japan after the 1944 Bretton Woods Agreement. 
wikipage: Bretton Woods system
long_answer: America was taken off the gold standard, but still allowed foreign governments to trade dollars for gold in 1933. In 1944, with the the Bretton Woods system, America started using the gold exchange standard. On 15 August 1971, the United States brought the Bretton Woods system to an end, ending the convertibility of the US dollar to gold.

knowledge: content: The Gold Standard Act of the United States was passed in 1900 (approved on March 14) and established gold as the only standard for redeeming paper money, stopping bimetallism (which had allowed silver in exchange for gold).
wikipage: Gold Standard Act

content: On April 19, 1933, the United States domestically abandoned the gold standard, whereafter independent states would remain assured of their US dollar holdings by an implied guarantee on their convertibility on demand: the Bretton Woods system formalized this international arrangement at the conclusion of World War II, before the Nixon shock unilaterally cancelled direct international convertibility of the US dollar to gold in 1971.[1]
wikipage: Gold Standard Act

content: The Bretton Woods system of monetary management established the rules for commercial and financial relations among the United States, Canada, Western European countries, Australia, and Japan after the 1944 Bretton Woods Agreement
wikipage: Bretton Woods system Fixed exchange rates

content: In response, on 15 August 1971, Nixon issued Executive Order 11615 pursuant to the Economic Stabilization Act of 1970, unilaterally imposing 90-day wage and price controls, a 10% import surcharge, and most importantly "closed the gold window", making the dollar inconvertible to gold directly, except on the open market.
wikipage: Bretton Woods system Nixon Shock
long_answer: The Gold Standard Act of the United States was passed in 1900 and established gold as the only standard for redeeming paper money, stopping bimetallism (which had allowed silver in exchange for gold). During the Great Depression, every major currency abandoned the gold standard. On April 19, 1933, the United States domestically abandoned the gold standard, but still allowed foreign governments to trade dollars for gold. The 1944 Bretton Woods Agreement led to the US adopting the gold exchange standard. On August 15, 1971, Nixon issued Executive Order 11615, which "closed the gold window", making the dollar inconvertible to gold directly, except on the open market.