The subprime mortgage crisis in the US, which began around 2002-03 and worsened in 2007-08, led to a significant decline in property prices, causing a cash crunch and major losses for banks. The crisis was characterized by unchecked credit growth, high levels of debt, and a lack of regulation. Many individuals took out mortgages to purchase homes or invest in real estate, hoping to profit from rising property values. However, when the market began to decline, these individuals found themselves unable to pay their debts, leading to widespread defaults and foreclosures. The resulting financial crisis led to the bankruptcy of several major financial institutions, a significant contraction in economic activity, and widespread job losses.