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1912-JUN-01 |
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1912-JUN-01 |
| Kingdom of SIAM [Rattanakosin Empire] | PHAYAP Circle | |
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| (Bankok) | (Chiangmai) |
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Principality of LAMPANG Province |
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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: | Lampang (Muang Lam Pang) |
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| Official & national languages: |