I'm in the middle of editing a great article, "Multivariable Control of Distillation," by Greg Shinskey. It will appear online and in print soon. As is always the case with articles like this, I have been conducting a considerable email correspondence with Greg, just dotting all the i's and crossing the t's. In the course of this exchange, Greg shared that this year marks the 50th anniversary of his first published paper: "For Gas-phase Reactors: Design for Control of Temperature," which appeared in Chemical Engineering on Oct. 5, 1959.