Alan Greenspan, the former chair of the U.S. Federal Reserve, has died at the age of 100. Widely considered a financial legend, Greenspan led the central bank through multiple economic cycles, including the 1987 stock market crash and the dot-com bubble. He served as Fed chair from 1987 to 2006, becoming known for his independent streak and focus on inflation control. His tenure saw periods of strong economic growth, but also faced criticism for policies some believe contributed to the 2008 financial crisis. Greenspan was a proponent of deregulation and free markets. The cause of death was reported as complications from Parkinson’s disease, which he had been battling for some time. His impact on global financial policy will be long remembered.