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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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