The document summarizes major events in the United States from 1991 to the present. It discusses the presidencies of Reagan, Bush Sr., Clinton, Bush Jr., and Obama. Key events covered include the Gulf War under Bush Sr., impeachment of President Clinton, the 9/11 terrorist attacks under Bush Jr., and military operations in Afghanistan and Iraq. It also mentions domestic issues like Reaganomics, the Moral Majority movement, and Clinton's attempted health care reform.