Perpetual calendar - virtual calendar | vp calendar, Perpetual calendar provides dates by year of all major holidays in the us and canada including jewish, chinese, christian holidays.. When leap year? | earth | earthsky, The last leap year was 2016, and the next one is 2020! leap days are extra days added to the calendar to help synchronize it with earth’s orbit around the sun and. Year 2008 calendar – united states - time date, United states 2008 – calendar with american holidays. yearly calendar showing months for the year 2008. calendars – online and print friendly – for any year and.

The christian calendar | calendars, What roman calendar? julius caesar introduced julian calendar 45 ..., roman calendar mess, -called "knowledge. http://www.webexhibits.org/calendars/calendar-christian.html Leap year - wikipedia, A leap year ( intercalary year bissextile year) calendar year additional day (, case lunisolar calendars, month. https://en.wikipedia.org/wiki/Leap_year Ethiopian calendar - wikipedia, The ethiopian calendar (amharic: የኢትዮጵያ ዘመን አቆጣጠር?; ä'ityoṗṗya ää ḳṭṭä) principal calendar ethiopia. https://en.wikipedia.org/wiki/Ethiopian_calendar