Last week, over 500 artefacts from Thailand were officially handed back to the country from the Bowers Museum in the US. The artefacts were mostly from Ban Chiang, and the looted properties included bronzes and painted pots.

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National News Bureau of Thailand, 20 November 2014
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The United States yesterday officially handed over more than 500 antiquities, mostly from the Ban Chiang archaeological site, to Thailand after they were illegally looted decades ago.
The handover ceremony took place at the National Museum on Na Phra That Road in western Bangkok.
The event was attended by representatives from the Culture Ministry, the Foreign Ministry and the US embassy who jointly signed a document to acknowledge the handover before displaying the items.
Culture Minister Veera Rojpojanarat said that Thais should realise the value of the artefacts. He expressed his gratitude to all related agencies, and to the Foreign Ministry in particular.
Full story here.