Anniversary Names
Anniversaries are often given names to represent their numbers. Some are very common. Some are quite a mouthful. Here are some of the more commonly accepted names.
| Year | Anniversary Name |
|---|---|
| 2nd | Biennial |
| 3rd | Triennial |
| 4th | Quadrennial |
| 5th | Quinquennial |
| 6th | Hexennial |
| 7th | Septennial |
| 8th | Octennial |
| 9th | Novennial |
| 10th | Decennial |
| 11th | Hendecennial |
| 12th | Duodecennial |
| 13th | Tredecennial |
| 15th | Quindecennial |
| 16th | Sextodecennial |
| 17th | Septendecennial |
| 20th | Vigintennial |
| 30th | Trigentennial |
| 40th | Quadragennial |
| 50th | Quinquagenary or Jubilee |
| 60th | Sexagennial |
| 70th | Septuagennial |
| 75th | Septuagesiquintennial |
| 80th | Octogintennial |
| 90th | Nonagintennial |
| 100th | Centennial |
| 125th | Quasquicentennial |
| 150th | Sesquicentennial |
| 175th | Septaquintaquinquecentennial |
| 200th | Bicentennial |
| 225th | Quasquibicentennial |
| 250th | Semiquincentennial |
| 300th | Tercentennial |
| 350th | Semiseptcentennial |
| 400th | Quatercentenary |
| 500th | Quincentennial |
| 600th | Sexcentennial |
| 700th | Septcentennial |
| 800th | Octocentennial |
| 1,000th | Millenial |
| 15,000th | Quindecimillenial |
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