Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Ban Chiang Archaeological Site' has mentioned 'Iron' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| The excavation at Ban Chiang in 1974xe2x80x931975 was followed by an article by Chester Gorman and Pisit Charoenwongsa, claiming evidence for the earliest dates in the world for bronze casting and iron working. | WIKI |
| Later stratigraphic layers of the site contain evidence for the widespread transition from bronze to iron tool making, characteristic of agricultural settlements in the proto-historic period throughout the region. | UNESCO |