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Yes. During the 18th century, Siam (which is now Thailand) established control over the majority of land that is now Laos. In 1828, the Vientiane Lao rebelled, but were unsuccessful. Laos became part of Siam. Siam had control over Laos until the French invaded Vietnam. In the early 1900s, Laos was absorbed into French Indochina thanks to treaties with Siam. So yes. Laos was part of Thailand (known then as Siam) for approximately 80 years.

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14y ago

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