Was the year 1700a leap year?

Answer 1

No it wasn't. It fell on a leap year but it was determined years ago that every century year that a leap year falls on that isn't divisible in whole by 400 should not be a leap year.

This is because it has been determined that it takes the earth 365 days 5 hours and 48 mins to orbit the sun, so if we had a leap year every 4 years it still wouldn't work precisely as that would equate to 365 days and 6 hours on average