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The origin of the chinese calendar

lienshan

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I found some very interesting information when reading early Zhou bronze inscriptions:

http://64.233.183.104/search?q=cach...ng+Gao+Zong+gui+fang&hl=da&ct=clnk&cd=5&gl=dk

Bronze inscription 22: "when the dating planet was at jia-shen"
Bronze inscription 28: "when the date planet was in ding-wei"
Bronze inscription 31: "the date planet was at chi-chou"
Bronze inscription 37: "the date planet being at the jia-shen position"
Bronze inscription 53: "when the date planet was in ding-hai"

Which planet is the "date planet"? None of the five planets, that can be seen with the naked eye, have cycles of 10 and 12 periods shifting every day in a cycle of 60 days? That's why I think, that the moon in ancient times was regarded as a planet and the prehistoric calendar must have been related to the moon this way:

Every day the Time of Tide moves 50 min back in time of the day. The 50 min related to the 60 min of an hour is expressed in the 10:12 relationship between the ten heavenly stems and the twelve earthly branches of the prehistoric chinese calendar. This way of counting was invented in the Dawenkou culture and they used tortoise carapaces as calendars. Each tortoise carapace represented a tidal cycle of 60 days and eight tortoise carapaces represented a complete tidal cycle of 480 days.

A tortoise carapace has 24 Marginal pieces. They were counted as twelve pairs each representing one period of two hours. The first half of the period was the odd hour and the second half of the period was the even hour. Inside the circle of 24 Marginal pieces a tortoise carapace has a circle of 10 pieces of eight Costal pieces and two Vertebral pieces. Each of these 10 pieces was counted as one day of a ten days week. Inside this circle a tortoise carapace has 3 Vertebral pieces. These were counted as a period of three hours, that the time of tide had went back in time of the day, when a counting of one carapace had finished.

The ten days were named Jia, Yi, Bing, Ding, Wu, Ji, Geng, Xin, Ren, Gui. They are today known as the Ten Heavenly Stems and easy to understand. The Twelve Earthly Branches are otherwise difficult to explain, but each of them represent a period of ten minutes of an chinese hour, that is two normal hours. The first six of ten minutes periods are the odd periods and the last six of the 10 minutes periods are the even periods. An Earthly Branch is the exact time of tide expressed in a ten minutes period of an chinese hour. They are named Zi, Chou, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, Hai. This is how the daily tidal counting works:

Day + Time of tide

Jia. 24.00 Zi - the beginning of a new tideal cycle of 60 days
Yi .. 23.10 Chou
Bing 22.20 Yin
Ding 21.30 Mao
Wu . 20.40 Chen
Ji .. 19.50 Si
Geng 19.00 Wu
Xin. 18.10 Wei
Ren. 17.20 Shen
Gui. 16.30 You

Jia. 15.40 Xu
Yi .. 14.50 Hai
Bing 14.00 Zi
Ding 13.10 Chou
Wu . 12.20 Yin
Ji .. 11.30 Mao
Geng 10.40 Chen
Xin. 09.50 Si
Ren. 09.00 Wu
Gui. 08.10 Wei

Jia. 07.20 Shen
Yi .. 06.30 You
Bing 05.40 Xu
Ding 04.50 Hai
Wu . 04.00 Zi
Ji .. 03.10 Chou
Geng 02.20 Yin
Xin. 01.30 Mao
Ren. 00.40 Chen
Gui. 23.50 Si

Jia. 22.00 Wu
Yi .. 21.10 Wei
Bing 20.20 Shen
Ding 19.30 You
Wu . 18.40 Xu
Ji .. 17.50 Hai
Geng 17.00 Zi
Xin. 16.10 Chou
Ren. 15.20 Yin
Gui. 14.30 Mao

Jia. 13.40 Chen
Yi .. 12.50 Si
Bing 12.00 Wu
Ding 11.10 Wei
Wu . 10.20 Shen
Ji .. 09.30 You
Geng 08.40 Xu
Xin. 07.50 Hai
Ren. 07.00 Zi
Gui. 06.10 Chou

Jia. 05.20 Yin
Yi .. 04.30 Mao
Bing 03.40 Chen
Ding 02.50 Si
Wu . 02.00 Wu
Ji .. 01.10 Wei
Geng 00.20 Shen
Xin. 23.30 You
Ren. 22.40 Xu
Gui. 21.50 Hai

Jia. 21.00 Zi - the beginning of a new tideal cycle of 60 days

Every one cycle of 60 days the time of tide moves 3 hours back in time of the day
Every eight cycles of 60 days the time of tide move 24 hours back in time of the day

In one grave of the Dawenkou Jiahu site, eight sets of tortoise shells were placed above the skeletal remains of a man whose head was missing. Sets of eight tortoise shells were too found in five of the other graves at the Jiahu site.

What might be interesting in connection with the Yi Jing is the dividing of time in odd and even periods of time, because the origin of the hexagram six lines is probably sets of six odd and even numbers according to the theory of Chang Sheng-lang.
 

midaughter

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Dawenkou culture

you wrote:
Dawenkou culture and they used tortoise carapaces as calendars. Each tortoise carapace represented a tidal cycle of 60 days and eight tortoise carapaces represented a complete tidal cycle of 480 days.

source? dates for this culture must be about 3000BC? They are on the coast , are these carapaces fresh or salt water?
 

lienshan

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One "source" is e.g. a booooring site like this:

http://www.wanfangdata.com.cn/qikan/periodical.Articles/zgkx-ea/zgkx2002/0207pdf/020715.txt

Put in short: The scholars have calculated a lot of oracle bone inscriptions with dates in order to find the first year of the Di Xin. The two best matching results say, that the first year was either 1063BC or 1052BC. That'll say, that the Conquest date was from 1020 BC to 1040 BC? I find the third best matching result much better: 1098BC

I'm reconstructing the calendar at the moment and have compared a lunar eclipse (full moon) day bing-zi (13) 1065BC March 12/13 (just after midnight) in first month of Wen's 35th year (Yi Zhou shu 23 "Xiao Kai") with a bronze vessel inscription from the fourth month day bing-xu (23) in King Sheng's fifth year; the dates are newmoons:

year twelfth month first month second month fourth month

1046BC 28.12 (38) ... 27.01 (08) ... 25.02 (37) ..... (36) +1 month
1045BC 16.01 (02) ... 15.02 (32) ... 16.03 (01*) .... (60)
1044BC 05.01 (57) ... 03.02 (25) ... 06.03 (56) ..... (55)
1043BC 24.12 (49) ... 22.01 (18) ... 23.02 (50) ..... (49) +1 month
1042BC 11.01 (12) ... 09.02 (40) ... 11.03 (11) ..... (10)
1041BC 31.12 (06) ... 29.01 (34) ... 28.02 (05) ..... (04) +1 month
1040BC 18.01 (29) ... 16.02 (57) ... 17.03 (27) ..... (26)
1039BC 08.01 (24) ... 06.02 (52) ... 08.03 (23) ..... (22)
1038BC 28.12 (18) ... 27.01 (47) ... 25.02 (17) ..... (16*) +1 month
1037BC 16.01 (42) ... 14.02 (10) ... 16.03 (41) ..... (40)
1036BC 05.01 (36) ... 03.02 (04) ... 06.03 (36) ..... (35)

The Zhou victory was won on day jia-zi (01) in the 2nd month 1045BC March 16
The vessel was made the fourth month day bing-xu (23) in the King’s fifth year 1038BC May 2

The Duke of Zhou ruled seven years from 1043BC to 1036BC so he probably wrote the Yi lines about 1035BC to 1030BC?
 
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midaughter

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Dawenkou culture isnot the same thing as the Zhou. the D culture overlaps the Yangshao which would be about 5,000 BC on the coast of the sea to the south of the mouth of the Yellow River, if I remember correctly.
 

lienshan

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The Dawenkou culture (4300-2500BC) was based in present-day Shandong province and can be considered one of the precursors of the Longshan culture (2500-2000BC). I do not know wether the sets of eight scarapaces found in the tombs are fresh or salt water? The pics shown on the Discovery Channel site were soon removed from the internet.
 

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