A centennial, or centenary in British English, is a 100th anniversary or otherwise relates to a century, a period of 100 years.
Notable centennial events at a national or world-level include:
Selected regional or other centennial events include:
| post code | city | state | latitude | longitude |
|---|---|---|---|---|
| 45631 | Centenary | IN | 38.79925 | -82.26765 |