Why is the week seven days? When did this begin?

There are all kinds of strange things in the world, and we will often encounter them in our daily life, such as the week, which is also very strange. The other is what we often call the New Year, which always occurs on the first day of the first month of every year, and starts at midnight on that day. But from the perspective of the lunar calendar or the Gregorian calendar, the day of the New Year is not necessarily Monday.

So why is a week seven days? When did this begin? Because the seven days of the week represent the seven gods such as the sun, the moon, and fire, each day defeats an immortal, which began about 321 BC.

Nowadays, every country in the world uses the system of seven days a week, in fact, this system was first used by Constantine and Dante.

This one was worked out by the emperor. Of course, there was also a seven-day week in English. These names were first derived from ancient Babylon.

Imperial. Around the sixth and seventh centuries B.C., the Babylonians introduced the system of the week, and they defined the seven days as seven star gods, each of whom ruled over the day. For example, the moon god is mainly responsible for Monday, so we call this day the Lunar Day.

In fact, when we were children, we didn't know much about the concept of the week, we often thought that there were only five days in a week, because we only had five days of classes, and we also agreed that Monday was the first day of the week, but in fact, this is not the case, a week has seven days, and Sunday is the beginning. The seven heavens represent the seven gods, and this system began around 300 BC.

We learned about time when we studied geography in middle school, and we also learned that the day is, to put it bluntly, the rotation of the earth.

The time it takes to make a lap. A month is actually the time it takes for the moon to make one revolution around the earth. The concept of seven days a week was developed in honor of the seven gods in the past 300 years BC.

There are all kinds of strange things in the world, and we often encounter them in our daily lives. For example, a week is strange. The other is what we often call the New Year.

New Year's always occurs on the first day of the first month of the year and starts from zero on that day. However, whether from a lunar or solar perspective, New Year's Day is not necessarily a Monday. So why seven days a week?

When did the rule start? Because there are seven days of the week representing the seven gods of the sun, moon, fire, etc., one god is defeated every day, which began in about 321 BC.

Because such a good record of time began before 300 B.C.

Between 6000 BC and 4000 BC, on the plains of Mesopotamia, a group of Sumerians lived. By observing the waxing and waning of the moon, they found that it takes seven days from the semicircle to the full moon. From the full moon to the semi-full moon, it also takes seven days; It still takes seven days to disappear from the semi-circle to the moon, and from the moon to the half-moon.

From this, they discovered that the seven-day cycle is the waxing and waning cycle of the moon. Therefore, they divided the month into four weeks, and set seven days as a cycle, and named these seven days after the seven star gods of the sun (Sunday), moon (Monday), Mars (Tuesday), Mercury (Wednesday), Jupiter (Thursday), Venus (Friday), and Saturn (Saturday), which is the earliest origin of the name "week".

Brief introduction of the week:

The week, also known as the week, is a unit of time and the basis for formulating working days and rest days.

The week as a time cycle originated in Babylon at the earliest. The universal system of the week was officially established by the Roman Emperor Constantine the Great on March 7, 321 AD.

In ancient China, it was called "Qiyao". During the Xia, Shang and Zhou dynasties in China, Qiyao refers to the seven main stars such as the sun, the moon and the five planets, and was an important organizational component of astronomical stars at that time.

In short, the seven-day week system has penetrated into our lives and has become our basic understanding of time. Its historical background and cultural significance are thought-provoking, and it also brings a lot of convenience to modern society.

Why seven days for a week? This is a deceptively simple question with a profound historical background and cultural significance. In our daily lives, the seven-day periodicity has become deeply rooted in the hearts of the people, and has become the basic understanding of time for my shouters.

So, how did this seven-day cycle come about?

The seven-day week system is not only a way of dividing time, but also has profound cultural significance. In traditional Chinese culture, seven is an important number and is considered auspicious. In Western culture, seven is also seen as a mystical number with strong ties to religion, mythology, and legend.

In addition, the seven-day cycle is also in line with the law of the human biological clock, so it also has important application value in medicine.

The seven days of the week were derived by the ancients based on the observation of the waxing and waning of the moon. Through the observation of the moon, the ancients found that from the halfcircle to the full moon, from the full moon to the semi-full moon, the time is 7 days, from the semicircle to the moon, and from the moon to the semi-full moon, which is also 7 days. So people divided the month into four weeks, and set a cycle of seven days.

The seven days of the week were derived by the ancients based on the observation of the waxing and waning of the moon. Through the observation of the moon, the ancients found that from the halfcircle to the full moon, from the full moon to the semi-full moon, the time is 7 days, from the semicircle to the moon, and from the moon to the semi-full moon, which is also 7 days. So people divided the month into four weeks, and set a cycle of seven days.

Hello, dear. The seven days of the week are derived from the Bible. The biblical book of Genesis records God's creation of the heavens and the earth.

On the first day God created light, on the second day he made air and water, on the third day he made land, sea, and all kinds of plants, on the fourth day he made the sun, moon, and stars, and set the days and nights, seasons, days, and years, on the fifth day he made all kinds of ornamental animals, on the sixth day God created man in his image, and on the seventh day the work of creation was finished, and God rested all his work, and blessed the seventh day of the hall of Shen Liang, and made it holy. This is where the tradition of a week is that there are seven days a week, with Sundays off.