2021 (MMXXI) was a common year starting on Friday of the Gregorian calendar, the 2021st year of the Common Era (CE) and Anno Domini (AD) designations, the 21st year of the 3rd millennium and the 21st century, and the 2nd year of the 2020s decade. Like the year 2020, 2021 saw the year by the COVID-19 pandemic ongoing, due to the emergence of multiple COVID-19 variants.
2021 (MMXXI) was a common year starting on Friday of the Gregorian calendar, the 2021st year of the Common Era (CE) and Anno Domini (AD) designations, the 21st year of the 3rd millennium and the 21st century, and the 2nd year of the 2020s decade. Like the year 2020, 2021 saw the year by the COVID-19 pandemic ongoing, due to the emergence of multiple COVID-19 variants.
Source: Wikipedia "2021" · CC BY-SA 4.0
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