This year, I intend to document—here on my blog—knowledge I gain or regain each day. That is, something new I learn or something I may once have known but have forgotten and learned anew. With that explanation, here is my start to 2017, which is not, by the way, a Leap Year.
A leap year is identified according to the following guidelines:
- The year is evenly divisible by 4;
- The year cannot be evenly divisible by 100, unless;
- The year is also evenly divisible by 400, in which case it is a leap year.
So, the year 2000, while it is evenly divisible by 4, should not be a Leap Year because it is evenly divisible by 100, except that, because it is evenly divisible by 400, it is a leap year.
Aside from the mathematics, Leap Years can be identified by the February calendar, which has twenty-nine days, versus the usual twenty-eight, thereby keeping the calendar in sync with the earth’s revolutions around the sun.