- Since the year 2000: 23 years
- Since the turn of the 21st century: 23 years
- Since the beginning of this millennium: 23 years
- Since the fall of the Berlin Wall: 34 years
- Since the first moon landing: 54 years
- Since the start of World War II: 81 years
Please note that these calculations are based on the Gregorian calendar and may vary depending on the calendar system used in different cultures. For more up-to-date information, I recommend checking a reliable source like a news website or calendar app.