The year 2021 was marked by the ongoing global impact of the COVID-19 pandemic. Vaccination efforts ramped up worldwide, with many countries rolling out vaccines like Pfizer, Moderna, and AstraZeneca to combat the virus. Despite these efforts, new variants emerged, leading to continued public health measures and restrictions in various regions. In addition to the pandemic, 2021 saw significant events such as the U.S. Capitol riot in January and the Tokyo 2020 Summer Olympics, which were held in 2021 due to delays caused by the pandemic. Climate change also remained a pressing issue, highlighted by extreme weather events and international discussions at the COP26 summit.