Best economics paper of 1959

Following the tradition of this blog, here goes my choice of paper that celebrates its 50th year. There is Herbert Simon's paper, but my very personal choice goes to a work from Douglass North that does not rank among his most popular ones:

North, Douglass. "Agriculture in Regional Economic Growth. Journal of Farm Economics, v. 51, 943-51

He extends his 1955 paper, and shows the role of the distribution of wealth and the production function on long run regional growth. A must read for regional economists and economic historians.