Leap Year ...a fact you should know and another really wierd one!

You might have thought that the year 2100 is going to be a leap year,
but it isn't! Every 4 years there is a leap year and 2096 is a leap year
but surprisingly the year 2100 doesn't follow the pattern!
We checked on the Internet and two sites said that 2100 isn't a leap year!
A website said that every year divisible by 100 isn't a leap year but a year
divisible by 400 is a leap year and if a year is divisible by 400 and 100
is a leap year!
See this and this for more information.