TECHNOLOGY × SOCIETY

A Press in Every City

~1450 CE

History · Middle Ages · Holocene · Meghalayan

Around 1450, in Mainz, movable metal type turned the book from a months-long manuscript into a manufactured object. The consequences are now measured: European cities that had a press by 1500 grew 60 percent faster than comparable cities over the next century, and cities with early presses were far more likely to turn Protestant, the first mass movement carried by mass media. The press even had a preferred habitat: towns that already ran mechanical clocks, where the fine-metal skills lived.

Why it matters

Printing is the reference case for what cheap information does to a society: commerce accelerates, ideas escape their custodians, and a monk's theses can reach a continent in weeks. Economists treat it as the early modern twin of the internet, and the parallel runs deep, down to the argument about whether the technology caused the upheavals or merely carried them. Once copying became cheap, no authority ever fully controlled the copy again.

Dating & uncertainty

Gutenberg's press operated in Mainz around 1450; the economic measurements come later. City-level data show that places adopting printing in the 1400s grew 60 percent faster than comparable cities over the following century, an effect identified using distance from Mainz itself as the instrument, since the technology diffused outward from its birthplace.

Sources

1. Dittmar (2011), Quarterly Journal of Economics · Information technology and economic change: the impact of the printing pressdoi:10.1093/qje/qjr035
2. Rubin (2014), Review of Economics and Statistics · Printing and Protestants: an empirical test of the role of printing in the Reformationdoi:10.1162/rest_a_00368
3. Boerner et al. (2021), European Economic Review · A time to print, a time to reformdoi:10.1016/j.euroecorev.2021.103826

Our species’ history as one day

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