The 21st Century is a time of rapid change and innovation, marked by advancements in technology and communication. With the rise of the internet and smartphones, people can connect instantly across the globe. This era has seen the emergence of social media platforms like Facebook and Twitter, which have transformed how we share information and interact with one another. In addition to technology, the 21st Century faces significant challenges, such as climate change and global health issues. Movements like Fridays for Future, led by activists like Greta Thunberg, highlight the urgent need for environmental action. As we navigate these complexities, the future remains uncertain yet full of potential.