2001 : The Economic Growth and Tax Relief Reconciliation Act of 2001 was a major piece of tax legislation passed by the 107th United States Congress and signed by President George W. Bush. It is also known by its abbreviation EGTRRA (often pronounced "egg-tra" or "egg-terra"), and is often referred to as one of the two "Bush tax cuts".
2008: The Economic Stimulus Act of 2008 (Pub.L. 110–185 (text) (pdf), 122 Stat. 613, enacted February 13, 2008) was an Act of Congress providing for several kinds of economic stimuli intended to boost the United States economy in 2008 and to avert a recession, or ameliorate economic conditions.
2009: The American Recovery and Reinvestment Act of 2009. Congress designed the Act to provide nearly $720 billion in benefits, or 91.5%, in its first three fiscal years. It allocated $185 billion in FY 2009, $399 billion in FY 2010, and $134 billion in FY 2011.
March 2020: The Coronavirus Aid, Relief, and Economic Security (CARES) Act was passed by Congress with overwhelming, bipartisan support and signed into law by President Trump on March 27th, 2020.
Dec 2020: The full details of what will be in the relief package have yet to be released. But the package is expected to include a $600 direct stimulus payment for Americans under a certain income level, along with many other programs aimed at helping the economic fallout of the pandemic.