Jia Sixian:
The outstanding agronomist of the Northern Wei Dynasty, revered as the "agricultural saint", he established a relatively complete agricultural system, advanced the animal breeding technology one step forward, used agricultural product processing, brewing, cooking, storage technology, recorded many agricultural technology observation materials, attached importance to agricultural production, scientific and technological analysis; His thinking is to conform to the laws of nature, give full play to his subjective initiative, take grain as the center, diversify operations, emphasize production costs, have economic accounting, and have unique and incisive views on how to improve the soil fertility of the land so that crops can continue to get sufficient nutrients from the land; His Qi Min Yao Shu is the most complete preserved ancient agricultural book in China.
Jia Tan:
Tang Dynasty was a geographer and politician, he liked geography, attached importance to geographical research, and paid a lot of arduous labor for it; He was an epoch-making figure in the history of Chinese geographical mapping, inherited and developed the method of scientific cartography, and had a far-reaching impact on later generations of cartography, and his geographical description in the book was an important basis for China's foreign declaration of territory and sea power; He painted the well-known "Map of Huayi in the Sea", which was the first time in China that place names were marked in two colors.
Jia Buwei:
A famous celestial arithmetic scholar in the Qing Dynasty, he was fluent in English, devoted his whole life to the cause of translating books, and made important contributions to the translation of Western studies and simplified calculations in the Westernization Movement, and was the first person in China to introduce Western calculators, personally leading and purchasing large calculators imported from Britain; His translation of the "Navigation Book" is a navigational guide written by the British Meteorological Observatory, and the longitude and latitude in the book were originally based on the British Meteorological Observatory, but he changed to Beijing as the starting point of longitude when he translated and published; He participated in the surveying and mapping work of the Yellow River, and also studied differentiation, integration, ellipse, algebra, and logarithms.
Jia Yi:
A famous politician and writer in the early Western Han Dynasty, he was rarely famous, and at the age of eighteen he was known as a county man for his good writing; He broke through the shackles of Taoism and Huang Laozhi, pushed Confucianism to the political forefront, and formulated a political blueprint for the combination of benevolence and courtesy, which was valued by Emperor Wen of the Han Dynasty and left a deep impact on history; It also proposed a Confucian political rule model for the Han Dynasty, which was benevolent and loved the people, courteous and respectful to the king; His progressive ideas in politics, economy, national defense, and social atmosphere played a role in the reign of Emperor Wen and played an important role in the long-term stability of the Western Han Dynasty.
Gia Island:
The poet of the Tang Dynasty, together with Meng Jiao, was called "the suburban cold island thin", and was called "poetry slave"; His poems like to describe desolate and lonely places, and there are many cold and bitter words, and he is known for his five-character poems; He works very hard to refine the meaning, his works have a fascinating artistic conception, every line of his poems and every word has been repeatedly tempered, carefully revised, but after he has written, but after he has written, the reader can not see any traces of modification, as if it is completely out of nature, in one go; The so-called bitterness can only be said from the aspect of the author's hard work, and from the aspect of the reader's appreciation, the author's bitterness cannot be seen.
Jia Kui:
During the Three Kingdoms period at the end of the Han Dynasty, he was a famous minister of Wei State, a figure with military and political talent in the Cao Wei regime, and was honored as one of the eight gentlemen of Wei and Jin Dynasty. During his tenure, he built a canal of more than 200 miles, called "Jiahou Canal", to facilitate the people's livelihood, Cao Cao was responsible for handling the funeral after his death, supported the son Cao Pi to take the throne, and later participated in the battle of Cao Pi's expedition to Wu, defeated the Wu general Lu Fan, and led the army to rescue Cao Xiu in the battle of Shiting to avoid the annihilation of the Wei army; He was rated as a model of "Jingda Opportunity, Willy and Willy, so he can sweep thousands of miles" in all the state assassin histories at that time.
Jajan:
A water conservancy expert in the Western Han Dynasty, based on the field investigation and demonstration of the Yellow River floods, he put forward the famous "Three Policies for River Control"; He not only put forward countermeasures to prevent flood disasters in the Yellow River, but also involved irrigation, dredging, alkali control, navigation and other treatment measures, and for the first time put forward the concepts of "compensation time" and "compensation for migrants". The proposed "Three Policies for River Control", which are to artificially change the river, divert floods and consolidate embankments, is the first comprehensive plan in the history of China's Yellow River control to promote benefits and eliminate harms. His three policies for governing the Yellow River have had an important impact on the governance of the river in later generations, and it is one of the important legacies of ancient river governance thought, and it is the earliest river governance document in China to promote the benefits and eliminate harm in the lower reaches of the Yellow River.
Jia Xian:
Northern Song Dynasty mathematician, his important contributions to mathematics were cited by the Southern Song Dynasty mathematician Yang Hui and preserved; He was the first to discover the Jia Xian triangle, and also invented the method of unlocking the lock, the method of unlocking the lock, the method of increasing the multiplication of the opening, and the method of increasing the multiplication of the opening, which made an important contribution to the abstraction, proceduralization and mechanization of the algorithm. He also first proposed the Pythagorean Thirteen Diagrams, leaving formulaic examples of problem solving for later generations, and his mathematical formula had a profound impact on Song and Yuan mathematicians; His Nine Chapters of the Yellow Emperor's Algorithm and Fine Grass was the most famous mathematical work in China before the 11th century, which played a role in connecting the past and the future.
Jia Jiying:
A merchant in the late Qing Dynasty, he was shrewd and capable, courageous and knowledgeable, good at coping, and had extensive social contacts, and gradually gained prestige; He served as the manager of the Lanzhou branch of the ** Bank, and concurrently served as the director of the joint office of the ** Bank, the Bank of China, the Bank of Communications, and the Farmers Bank of the Great Northwest, and also served as the supervisor of the Bank of Gansu Province, and was one of the founders of China's banking industry; He did his best to provide support to the Shanxi organs, schools, associations, and industrialists who had moved westward, and also vigorously supported the establishment of industries, such as the Gansu Mining Company, the Jingning Guanzixia Coal Mine, and the establishment of an iron-making plant, thus making great contributions to the economic development of Gansu Province during the war.
Jia Qianrui:
Major General of the People's Republic of China, who participated in the Chinese Workers' and Peasants' Red Army and joined the Communist Party of China in 1935; During the Agrarian Revolutionary War, he participated in the battles of defending the revolutionary base areas of northern Shaanxi, such as Yulin Bridge, Laoshan, Zhiluo, Eastern Expedition, and Western Expedition; During the Anti-Japanese War, he participated in the famous Battle of Pingxingguan; During the Liberation War, he participated in and commanded the battles of Feng, Bo, and Alkali North to liberate Tianjin; After the founding of the People's Republic of China, he served as the commander of the 22nd base of the former Commission of Science, Technology and Industry for National Defense, and graduated from the Military Academy in 1956.
Deputy to the Fourth and Fifth National People's Congress.