What measures did the issuance of new coins and the patent of salt and iron wine refer to at that time?

Issue new currency: use round square hole currency uniformly throughout the country; Patent of salt-iron liquor: Salt-iron liquor is a monopoly, firmly controlled by the court, and may not be sold by private individuals.

Qin Shihuang unified the currency mainly in the following ways: First, the state unified the coinage, severely punished private coinage, and held the manufacturing right of the currency in the hands of the state. The second is to unify the two currencies, namely, the upper currency gold and the lower currency copper. The change of gold is based on "Iraq", and one Iraq is 22 Liang. Copper coins take "half Liang" as the unit, and the word "half Liang" is obviously cast in gold coins. Copper coins are shaped like square holes, commonly known as "Qin Banliang". Pearl jade, tortoise shell, silver and tin, which were once popular in six countries, can no longer be used as currency. Speaking of the Qin Dynasty, China's currency was second-class; Gold is named after Yan, and it is a coin; Copper coins, commonly known as half a tael, are as heavy as the text, and are the next coins. Jade beads, tortoiseshell, silver and tin are ornaments, not coins.

Extended data:

Ying Zheng (259 BC-265438 BC+00 BC), Qin Shihuang, won the surname Zhao, also known as "Zheng", also known as "Zheng". Qin Zhuang Xiang Wang and Evonne's son. China was an outstanding politician, strategist and reformer in ancient times. He was a politician who realized the unification of China for the first time, and the first monarch in China who was called the emperor.

Qin Shihuang made many unprecedented achievements in unifying China, the most influential of which are:

1, unified writing, making it the foundation of a nation and continuing to this day;

2. Abandoning state-owned counties became the standard management mode after the unification of China, which lasted for thousands of years;

3. Unifying currency and weights and measures greatly facilitates domestic commercial exchanges;

4. The cars are on the same track and the roads are at the same distance. The construction of Qin Zhi Road has greatly facilitated domestic traffic;

5. The construction of Lingqu strengthens the control of the Pearl River Basin, making this area the territory of China forever;

6. Build the Great Wall to make it a natural dividing line between agricultural and nomadic peoples, and the Great Wall will become a national border for a long time;

7. Attack the Huns in the north and recapture the Hetao area, making this area the territory of China forever.