Occurrence of Attributes in Original Text
The text related to the cultural heritage 'The Slate Landscape of Northwest Wales' has mentioned 'World' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Penrhyn and Dinorwig were the two largest slate quarries in the world, and the Oakeley mine at Blaenau Ffestiniog was the largest slate mine in the world. | WIKI |
| The same year, Lord Penrhyn opened a new quarry at Caebraichycafn near Bethesda, which as Penrhyn Quarry would become the largest slate quarry in the world. | WIKI |