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1917-AUG-03 |
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1917-AUG-03 |
| Kingdom of SIAM [Rattanakosin Empire] | PHAYAP Circle | |
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| (Bangkok) | (Chiangmai) |
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Principality of LANNA |
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| Flag or Logo since 1900-01-01 | Emblem or Symbol |
 King Rama VI Vajiravudh (ruler of SIAM since 1910-10-23) |
| Capitals & administrative places: | Chiangmai (Chiang Mai) |
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| Official & national languages: |