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The first COVID-19 vaccine was officially approved by the Food and Drug Administration on 23 August 2021. By 18 November 2022, while cases in the U.S. had declined, COVID variants BQ.1/BQ.1.1 had become dominant in the country.
Ronald Wilson Reagan (/ ˈ r eɪ ɡ ən / RAY-gən; February 6, 1911 – June 5, 2004) was an American politician and actor who served as the 40th president of the United States from 1981 to 1989.
In 2002, the project was renamed after NASA's second administrator (1961–1968), James E. Webb (1906–1992). Webb led the agency during the Apollo program and established scientific research as a core NASA activity. In 2003, NASA awarded TRW the US$824.8 million prime contract for Webb.
The 2020 United States presidential election was the 59th quadrennial presidential election, held on Tuesday, November 3, 2020. The Democratic ticket of former vice president Joe Biden and the junior U.S. senator from California Kamala Harris defeated the incumbent Republican president, Donald Trump, and vice president, Mike Pence.
macOS Big Sur (version 11) is the seventeenth major release of macOS, Apple's operating system for Macintosh computers. It was announced at Apple's Worldwide Developers Conference (WWDC) on June 22, 2020, and was released to the public on November 12, 2020.
Microsoft Windows is a product line of proprietary graphical operating systems developed and marketed by Microsoft.It is grouped into families and sub-families that cater to particular sectors of the computing industry -- Windows (unqualified) for a consumer or corporate workstation, Windows Server for a server and Windows IoT for an embedded system.
Economy of the United States New York City, the world's principal fintech and financial center and the epicenter of the world's principal metropolitan economy Currency United States dollar (USD) US Dollar Index Fiscal year October 1 – September 30 Trade organizations WTO, G-20, G7, OECD, USMCA, APEC and others Country group Developed/Advanced High-income economy Diversified North American ...
A black hole is a region of spacetime where gravity is so strong that nothing, including light and other electromagnetic waves, is capable of possessing enough energy to escape it.