| 1 | Steam railways had their heyday in the 19th century. | |
| 2 | The heyday of the coal market is far from over. | |
| 3 | At its zenith the Roman Empire covered almost the whole of Europe. | |
| 4 | In its Maoist heyday the museum was a place of pilgrimage. | |
| 5 | In its Maoist heyday the museum was a place of pilgrimage. |
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