A '''calendar''' ([[Latin]] ''kalends'' the first day of any [[month]]) is a schedule of [[day]]s, [[month]]s, and [[year]]s used to reckon the activities of an individual, group, or government, or the history of the world or any group of people in it. | A '''calendar''' ([[Latin]] ''kalends'' the first day of any [[month]]) is a schedule of [[day]]s, [[month]]s, and [[year]]s used to reckon the activities of an individual, group, or government, or the history of the world or any group of people in it. |