Dear PD Community & men of the forum. Being of Roman jean pool I can tell you how the Romans do/did it. Very practically. First of all they were in BC, so it was no problem to go from year ...4 to 3, 3 to 2, 2 to 1 & 1 to 0. Then going into AD it went from year 0 (BC) to year 1 (AD), 1 to 2, 2 to 3 and so on. SEE! Easy when you know what your talking about. The real problem comes with the cure. Will it be year 0 (APD) or Year 1 (APD) {APD ='g After Parkinson's Disease) We may have to delay the cure til after we figure it out. Any questions ? Thats all folks, Ciao, Stacy