Sheff Weds formed on a Wednesday ." A popular headline in the newspapers in those days when United and Wednesday played each other was ‘a Clash of Blades.’ The name ‘Blades’ was used far more by United supporters than the name ‘Cutlers’, whereas the Wednesday supporters, encouraging their team, always thought it was their right to use the name ‘Blades’ since they were the older club." does this move it on a bit?
You've worked hard for it Yorkie, I'll give it to you. They were originally "The Wednesday", a cricket club who played football in the Winter to keep fit. They were all butchers or butchers' assistants who could only play on a Wednesday which was half day closing in Sheffield! The blades was their original nickname and should have remained as it fits in nicely with butchering! Over to you!
Quite simply, to balance out so that over time, we do have the exact number of days. The common reason given for the extra day is that each year is 365.25 days long but it's slightly less, so the easiest "leap" years to drop the excess days from are those ending with 00.
Leap years only come on every fourth millennia i.e 1600, 2000, 2400. I think that's what I was told at school, though that was about a millennium ago!
To do with how long the earth travels totaly around the sun. A true year is 365 days 6 hours and a little bit. To get this nearly right a leap day is added, the little bits is just long enough so every 400 years the leap day is lost to return the calendar system to normal.
A couple of clues: the items you use with these aren't gender-specific, but come in various weights from 26oz to 30oz. Also, the measurements in the question are the circumferences.
They are balls, but specific to a certain sport, which may be the only ball sport where men and women play together.
