《汉字解码学》34“契”也是记事的原始方式，后演化为盟约、契约的使用 34 "deed" is the original way of note,

《汉字解码学》34“契”也是记事的原始方式，后演化为盟约、契约的使用。

契   甲骨文象人以刀在木头上契刻之形。篆书加双手于下（大，即指双手），表示一手持木，一手持刀，，进行契刻，形象生动。《说文》注：“大约也。《易》曰：后代圣人易之以书契。”契指用刻刀刻竹、木以记事作盟约，后世改称文契。《易经》说的书契即符书。后泛指买卖、租赁、借贷、抵押之凭据，如地契、卖身契、租契、借契等。引申关键、契机。作动词，指契合、符合、投合。

契 (名) contract; agreement; deed


据《百度 百科》资料，“契（閼伯）”也是中国4400多年前的一位重要人物，他正是商朝的祖先，而且是古代的伟大天文学家：
契（xiè），一作卨，子姓，河南商丘人，出生于高辛（今河南省商丘市睢阳区高辛镇），后被帝喾封于商丘主管火正，后世尊称其为“阏伯”、“火神”，五帝之一帝喾之子、帝尧的异母弟，生母为简狄。[1-3] 

尧称帝时做为司徒，后被封为契玄王。相传为帝喾后妃简狄吞玄鸟之卵而生。《左传》载：“陶唐氏之火正契居商丘，祀大火，而火纪时焉。相土因之，故商主大火。”他是商族部落的祖先，也是商朝开国君主商汤的先祖。[1] 

公元前2400年的尧舜时代，契发明了以火纪时的历法，在管火的同时筑造阏伯台观察星辰，以此为依据测定一年的自然变化和年成的好坏，为中国古老的天文学作出了重要贡献。契在他的居住地“商”（今商丘）做火正，呕心沥血，深受人民的爱戴，故中国民间尊他为“火神”。契死后葬于商丘阏伯台下，由于契的封号为“商”，他的墓冢也被称为“商丘”，即今商丘市的由来。

契时，商族正进入父系氏族社会阶段，距阶级分化和商朝的建立还有一段时间。因此，在夏朝统治时期，刚刚兴起的商族仅仅是夏朝在西方的一个附庸。从契至汤的14世中，虽然商族人在黄河中下游广阔的平原上频频迁徙达八次之多，但每次迁徙后都又回到了商丘。由此可见，商族由契至汤的14世都是以商丘为根据地，不断向外拓展而逐步发展起来的。公元前16世纪，商汤建都亳，这里成为商朝的第一国都。从商朝至今近4000年的悠悠岁月，商这块土地上，留下了许许多多灿烂与辉煌。

34 "deed" is the original way of note, after the evolution of the Covenant, the use of the contract.

Qigong bone like a knife in the wood carved on the shape of the contract. Seal plus his hands in the next (large, refers to his hands), said a hand-held wood, a knife in one hand, for carving, the image vivid. "Said the text" Note: "About". "Yi" said: the descendants of the saints and easy to the book lease. "Refers to the use of carved knife carved bamboo, wood to note for the covenant, later renamed Wen Qi. "Book of Changes," said the deed of the book. After the term refers to the sale, lease, loan, mortgage of the credentials, such as deed, sell deed, lease, lease and so on. Extended the key and opportunity. As a verb, referring to fit, meet, meet.

Contract;

According to the "Baidu Encyclopedia" information, "deed" is also an important figure in China 4400 years ago, he is the Shang Dynasty ancestors, but also the ancient great astronomer:

(Now Shangqiu City, Henan Province, Suiyang District, Gaoxin town), after the emperor was sealed in Shangqiu charge of fire is, later known as the "阏 (阏 阏 阏 阏 阏 阏 阏 阏 阏 阏) "," Vulcan ", one of the five emperors of the emperor of the child, Emperor Yao's brother, mother Jane Di. [1-3]

Yao said when the emperor as Stuart, after being called the Ciyuan king. Legend has it that emperor Jiu concubine Jane Dittle bird of the egg. "Zuo Zhuan" contains: "Tao Tang's fire is Jixue Shangqiu, worship fire, and the fire when the Yan Ji, phase soil, the fire of the merchants." He is the tribe's ancestors, but also the founding monarchs Shang Shang Tang ancestors. [1] 

2400 BC, the era of Yao and Shun, the deceased invented the calendar of the fire calendar, in the pipe fire at the same time to build the observation of the stars Bubbai Taiwan, as a basis for the determination of a year of natural change and the good or bad year for China Ancient astronomy has made an important contribution. In his place of residence, "Shang" (now Shangqiu) made fire, worked hard, loved by the people, so the Chinese folk respect him as "Vulcan." Qi died after the Shangqiu buried in Bodai, due to the title of the title of "business", his tomb is also known as "Shangqiu", that is Shangqiu City origin.

When the clan, business family is entering the patriarchal clan social stage, from the class division and the establishment of the Shang Dynasty there is still a period of time. Therefore, in the Xia Dynasty rule, just the rise of the Shang family is only a Western Xia Dynasty in the vassal. From the 14th to the Tang Dynasty, although the Shang tribe frequent migration in the vast plains of the Yellow River up to eight times, but after each move back to Shangqiu. Thus, the Shang family from the contract to the soup of the 14 are based on Shangqiu, continue to expand outward and gradually developed. The 16th century BC, Shang Tang capital of Bo, here to become the first capital of the Shang Dynasty. From the Shang Dynasty has been nearly 4,000 years of long years, to this land, leaving a lot of brilliant and brilliant.