start of construction (Q27136782)
event, point in time (or also in space), to mark the difference from "end of construction", "start of using (exploitation)"...
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aliases broke ground
 construction start
 start of manufacturing
description event, point in time (or also in space), to mark the difference from "end of construction", "start of using (exploitation)"...

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(P2671) /g/11dyjxdym