How Venice protected its glassblowing industry

By Scott Granneman / 21 April 2006 21 April 2006 / business, commonplace book, history, security, tech in changing society, technology / business, history, politics, secret, security

From Paul Graham’s “Are Software Patents Evil?“:

The most memorable example of medieval industrial secrecy is probably Venice, which forbade glassblowers to leave the city, and sent assassins after those who tried.