German industrialization began in the 1830s yet remained overwhelmingly agricultural through mid-century.

Evidence

The industrialization of Germany really began in the 1830s and 1840s with the introduction of steam-powered machinery and the importation of skilled artisans from England (to operate mule-jennys in the cotton mills of Saxony, build textile machinery and steam-ships, and inaugurate power loom weaving in Lower Silesia). Up through the mid-nineteenth century, however, Germany was still overwhelmingly agricultural. — Cedric J. Robinson, Black Marxism_ The Making of the Black…, 322