"The laws of history are as absolute as the laws of physics, and if the probabilities of error are greater, it is only because history does not deal with as many humans as physics does atoms, so that individual variations count for more."
― Isaac Asimov, Foundation and Empire
To find the cache you're going to have to solve this crossword. Once you have the crossword solved, convert the values in the squares to numbers using A=1, B=2, C=3, ... J=0, K=1, L=2, ... etc. - the cache is located at N AB CD.EFG W OPQ RS.TUV. A blank copy of the crossword grid can be found under photos if you find solving it easier that way.

| Across |
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Down |
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| 5 |
Empire Beta |
|
1 |
Foundation R6 |
| 8 |
Empire Zeta |
|
2 |
Foundation R1 |
| 10 |
Empire Alpha |
|
3 |
Empire Gamma (minus the last letter) |
| 11 |
Foundation R5 |
|
4 |
Foundation F6 |
| 12 |
Foundation F4 |
|
6 |
Empire Epsilon |
| 15 |
Empire Delta |
|
7 |
Foundation F7 |
| 22 |
Empire Eta |
|
9 |
Foundation F2 |
| 25 |
Foundation 8 |
|
13 |
Actively Promote |
| 26 |
Foundation F1 |
|
14 |
What |
| 27 |
Foundation 9 |
|
16 |
Foundation R2 |
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|
17 |
Foundation R7 |
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|
|
18 |
Foundation F3 |
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|
19 |
Foundation R10 |
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|
|
20 |
Foundation R3 |
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|
|
21 |
Foundation F5 |
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|
|
23 |
Foundation R4 |
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|
|
24 |
Who |
Some answers may have non-alphanumeric characters - only enter numbers and letters into the crossword grid.
You can check your answers for this puzzle on GeoChecker.com.
This is one of 54 puzzle caches spelling out "WSGA" in honor of the 10th anniversary of Washington State Geocaching Association.