Despite all efforts, the Julian calendar still required further reform, since the calendar drifted with respect to the equinoxes and solstices by approximately 11 minutes per year.
By 1582, this resulted in a difference of 10 days from what was expected.
The term "holiday" can be interpreted differently, depending on region. Generally, holidays are meant to commemorate some event, person, or group of cultural or religious significance.
Although certain holidays, such as Christmas and New Year's Day, are widely celebrated worldwide, most countries have their own set of holidays that are specific to the country, and even the same holidays may be observed differently within countries: some may receive full suspension of typical daily activities, while others may only get partial days off.
Please Note: The Mare Gestation Calculator is intended for use only as a foaling date estimation tool for horses.