MMXX is the Roman numeral representation for the year 2020. In this system, "M" stands for 1000, and "X" stands for 10, so MMXX translates to 2000 + 20, or 2020. This year was notable for various global events, including the COVID-19 pandemic, which significantly impacted public health and economies worldwide. The year 2020 also marked the Tokyo 2020 Olympics, which were postponed to 2021 due to the pandemic. Additionally, it was a year of significant social movements, including protests for racial justice, particularly in the United States, following the death of George Floyd.