yearly calendar dates – A calendar is a system consist of day, week, month, and year. A calendar date is a particular day within the calendar. Because of this, now we can mark the holiday, day for work, religious activity, and national activity.
Yearly Calendar Dates around the World
We can indicate the time by using calendar system. Imagine, indicating a period without a yearly calendar dates. Before Gregorian calendar was commonly accepted throughout the world, each culture has different way to date the day.
Thanks to Pope Gregory XIII, now we have an accurate calendar that marks one year as almost exactly as one earth’s revolution around the sun. Since the early of the medieval period, European scholars had been aware of calendar drift.
The canonical date at that time was not in accordance with the observed reality. Pope Sixtus IV, initially attempted to implement the change but was interrupted by the death of Regiomontanus.
After the precision astronomical knowledge was clear, some papers were sent to reform for the calendar reform. The project was implemented by Pope Gregory by the introduction in October 1582. Until now, the yearly calendar dates that we are using is a Gregorian calendar.
Before the Gregorian calendar was Julian calendar. He noticed the incompatibility between lunatic calendar and the solar cycles. To keep the lunisolar calendar correspondence, addition of day in the month had to be applied. The addition is called intercalary. But the intercalary was too complex. He decided to get rid of it and keep the twelve months per year, and relying only on the solar equinox as standard.
While the modern calendar and Julian calendar only relying on solar equinox as standard, Islamic calendar only relies on the lunar phase. Before Islam arose, Arabic calendar was using season as standard.
For example, Rabi’ ula as the first spring, Rabi’ tsani as second spring. Jumada ula, means the first month of scorched land. Jumada tsani, means second month of parched land. Then Shaban as dispersed to find water. Ramadan, the scorched as the temperature is burning hot. Shawwal, means raised, it’s a month where the camels raised their tails after calving.
But, after Prophet Muhammad brought Islam, the calendar was changed. Quran prohibits intercalation to match the seasonal change with the calendar.
So, the Islamic calendar only relies on the moon phase. Using the moon phase as a sign of the calendar had some deficiencies. Weather like cloud could cover the moon. The moon’s appearance is also related to the geographic location. So, Islam also allows the calculation of the day to determine the date.
The determination of the month had been controversial for some times. Even after the advance of technology, the calculation is still debatable.
Some Moslem scholars debate for the condition that hilal, the new moon, could be sighted. The popular standard is that the moon height is at 4-degree angle related to horizon. But some debates that the naked eye could not see a moon in that height. Yet, it could differ from one place and another, because of the earth’s roundness.
The Kingdom of Saudi Arabia, which is the center of Islam around the world, uses the sighting method. The sighting method is also controversial. Like when a Bedouin testified that he had seen the hilal. But by astronomical measures, it was impossible that the new moon happens at that time.
Islamic yearly calendar dates is important because Islamic holidays rely on it. Some Islamic nations, like Malaysia, Saudi Arabia, Morocco, Algeria, are using Islamic calendar alongside the Gregorian calendar.
The Japanese calendar is also unique. It still uses the Gregorian calendar, but the year designation states the current emperor reign. Recently, the new Japanese emperor ascended the throne.
The change of the emperor also ended the Heisei era in the Japanese calendar. The new era is called Reiwa, starting from first of May. From then, yearly calendar dates in japan is restarting from year one.
Yearly Calendar Dates 2019
Yearly Calendar Dates 2020
Yearly Calendar Dates