Meanings of industrial heyday in English

He had heard that in its industrial heyday, Corby had had the largest Scottish population south of the border.

Unlike the US during its industrial heyday, they can capitalise on the effective and affordable energy technologies widely available to accelerate their energy transition.

Detroit's population has declined since the industrial heyday of the 1950s and stood at 701,475 in 2012, according to a U.S. Census Department estimate.