He divided the history of humanity into three eras: pre-industrial, industrial and postindustrial.

Sinew was widely used throughout pre-industrial eras as a tough, durable fiber.

The geographical feature is named Lavender Hill due to the commercial cultivation of lavender there in the pre-industrial era.

Nevertheless, like the cities of the pre-industrial era, modern industry-based urban areas were mechanisms for sustaining human contact.

Experts say atmospheric levels of carbon dioxide may be double that of the pre-industrial era by the end of the next century.

Mr. Collier said May elections were a holdover from the pre-industrial era.

In the pre-industrial era these fluxes were largely in balance.

The academic year was originally designed for the pre-industrial era when all able-bodied young people were needed to help with harvesting over the summer.

It contains houses and workshops of the traditional Romanian folk culture from the pre-industrial era.

The consensus amongst most economists is that such a policy is detrimental, and they point to the mercantilism of the pre-industrial era as the classic example.