What Decade and Century Does the Year 2000 Belong To?
Discover why the year 2000 is part of the 20th century and how it marks the start of the 21st century and the 3rd millennium.
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The year 2000 is part of the 20th century, but it marks the beginning of the 21st century and the 3rd millennium. This distinction is due to the calendar starting at year 1, making the first century span years 1 to 100. Therefore, the 20th century includes years 1901 to 2000.
FAQs & Answers
- Is the year 2000 part of the 20th or 21st century? The year 2000 is the final year of the 20th century, though it also marks the beginning of the 21st century and the 3rd millennium.
- Why does the 20th century include the year 2000? Because the calendar starts at year 1, each century spans 100 years starting at year 1, so the 20th century runs from 1901 to 2000.
- When does a new century officially begin? A new century officially begins on the year ending with 01, for example, the 21st century began on January 1, 2001.