Northern Thailand
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Northern Thailand, one of the 5 regional groups of Thailand, usually describes the area covered by 17 provinces.
Much of the area's territory is mountainous, making it relatively cool compared to Central Thailand.
The history of Northern Thailand is dominated by the Lanna kingdom, which was founded in 1259 and remained an independent force until the 16th century.
In 2000, Northern Thailand banned caffeine [1] to thwart methamphetamine production [2].