《지구의 날》, or Earth Day, is an annual event celebrated on April 22. It aims to raise awareness about environmental issues and promote actions to protect our planet. The first Earth Day was observed in 1970, initiated by Senator Gaylord Nelson in the United States, and has since grown into a global movement. On this day, millions of people participate in various activities, such as planting trees, cleaning up parks, and advocating for sustainable practices. Earth Day serves as a reminder of the importance of preserving our natural resources and encourages individuals and communities to take responsibility for the environment.