This article only provides a detailed description of the financial market events of September 2008. For the background information, causes, effects and policy responses see Financial crisis of 2007–08. For a timeline see Subprime crisis impact timeline. Prelude The subprime mortgage crisis reached a critical stage during the first week of September 2008, characterized by severely contracted liquidity in the global credit markets and insolvency threats to investment banks and other institutions. US government takeover of home mortgage lenders The United States director of the Federal Housing Finance Agency (FHFA), James B. Lockhart III, on September 7, 2008, announced his decision to place two United States government-sponsored enterprises (GSEs), Fannie Mae (Federal National Mortgage Association) and Freddie Mac (Federal Home Loan Mortgage Corporation), into conservatorship run by FHFA. United States Treasury Secretary Henry Paulson, at the same press conference stated that placing the two GSEs into conservatorship was a decision he fully supported, and said that he advised "that conservatorship was the only form in which I would commit taxpayer money to the GSEs." He further said that "I attribute the need for today's action primarily to the inherent conflict and flawed business model embedded in the GSE structure, and to the ongoing housing correction." The same day, Federal Reserve Bank Chairman Ben Bernanke stated in support: "I strongly endorse both the decision by FHFA Director Lockhart to place Fannie Mae and Freddie Mac into conservatorship and the actions taken by Treasury Secretary Paulson to ensure the financial soundness of those two companies." Developing global financial crisis Beginning with bankruptcy of Lehman Brothers at midnight Monday, September 15, 2008, the financial crisis entered an acute phase marked by failures of prominent American and European banks and efforts by the American and European governments to rescue distressed financial institutions, in the United States by passage of the Emergency Economic Stabilization Act of 2008 and in European countries by infusion of capital into major banks. Afterwards, Iceland almost claimed to go bankrupt as the country's three largest banks, and in effect financial system, collapsed. Many financial institutions in Europe also faced the liquidity problem that they needed to raise their capital adequacy ratio. As the crisis developed, stock markets fell worldwide, and global financial regulators attempted to coordinate efforts to contain the crisis. The US government composed a $700 billion plan to purchase unperforming collaterals and assets. However, the plan failed to