> From: "Prof. Dr. Jochen Ziegenbalg" <email@example.com> > > lest someone thinks that the question if zero is an even number is of no > practical value at all, let me quote the following news from the German > television news program (ZDF) "heute" on Oct. 1, 1977: > > Smog alarm in Paris: Only cars with an odd terminating number on the > license plate are admitted for driving. Cars with an even such number > were not allowed to be driven. There were problems: Is the terminating > number 0 an even number? Drivers with such numbers were not fined, > because the police did not know the answer. >
I remember something similar from the oil embargo of 1973, when California did some even-odd gasoline rationing. (License plates ending in an even number could gas up on Monday, Wednesday, Friday, while their odd counterparts could do so on Tuesday, Thursday, Saturday, with a free-for-all on Sunday, or some such scheme -- does anyone recall the details?) There was considerable controversy over whether 0 was even, odd, neither, or both.