It’s often assumed that Just-in-Time (JIT) Manufacturing was devised by the Japanese in the 1970s. It wasn’t. The Empire State Building, built in 1931-32, is a great example of JIT building. New York City refused the builders permission to store materials on site in case it disrupted traffic on Fifth Avenue. To overcome the problem, the architects, working without a computer, scheduled the delivery of all materials so that they could be unloaded from a truck and immediately fitted into place on the building. At the height of the construction, trucks were drawing up outside the building site every ten minutes!