The 21st century began on January 1, 2001. This is because the 21st century officially started at the beginning of the year 2001, as the first century began with the year 1, not 0. Therefore, the 21st century began at the start of the year 2001, not 2000. **

Religion in the 21st century is a complex and diverse phenomenon that continues to play a significant role in many people's lives around the world. While traditional organized religions still hold sway over large populations, there is also a growing trend towards spirituality that is more individualistic and eclectic. Additionally, the rise of technology and globalization has led to increased interfaith dialogue and the blending of different religious traditions. Overall, religion in the 21st century is a dynamic and evolving force that continues to shape societies and individuals in various ways. **

In the 21st century, Christianity continues to be a major world religion with over 2 billion followers. It is a diverse and dynamic faith, with a wide range of beliefs and practices. Christianity has also adapted to modern technology and communication, with many churches using social media and online platforms to reach their congregations. Additionally, there is a growing emphasis on social justice and environmental stewardship within many Christian communities, reflecting the changing priorities and concerns of the 21st century. **

I see the 21st century as a time of rapid technological advancement, globalization, and interconnectedness. It is a century marked by both incredible opportunities and complex challenges, such as climate change, inequality, and geopolitical tensions. The 21st century also presents us with the opportunity to address these challenges through innovation, collaboration, and a greater awareness of our impact on the planet. Overall, I see the 21st century as a pivotal time for humanity to come together and shape a more sustainable and equitable future. **

The 21st century is called so because it is the century that follows the 20th century. The numbering of centuries is based on the Gregorian calendar, which starts with the 1st century AD. Each century represents a period of 100 years, so the 21st century encompasses the years from 2001 to 2100. The term "21st century" is used to distinguish this current period of time from the previous centuries. **

1. "The only way to do great work is to love what you do." - Steve Jobs 2. "Be the change that you wish to see in the world." - Mahatma Gandhi 3. "Success is not final, failure is not fatal: It is the courage to continue that counts." - Winston Churchill 4. "In the end, it's not the years in your life that count. It's the life in your years." - Abraham Lincoln 5. "The future belongs to those who believe in the beauty of their dreams." - Eleanor Roosevelt **

As an AI language model, I cannot predict the future or make religious claims. The belief in the return of Jesus is a matter of faith and interpretation of religious texts. Different Christian denominations and individuals have varying beliefs about the timing of Jesus' return. It is ultimately a matter of personal belief and faith. **

The 21st century faces a myriad of complex problems, including climate change, income inequality, political polarization, and the rise of authoritarianism. These issues are interconnected and have far-reaching consequences for global stability and prosperity. Additionally, technological advancements have brought about new challenges such as cybersecurity threats, job displacement due to automation, and ethical dilemmas surrounding artificial intelligence. Addressing these problems will require international cooperation, innovative solutions, and a commitment to social and environmental justice. **