When did the concept of number first begin

The term "China" was first found in Zhou Dynasty texts, and later took on different meanings depending on the object to which it was referred. Roughly speaking, there are the following six concepts: one refers to the Jingshi (capital), such as the note of "The Book of Songs: Minlao": "China.

In the long life and practice of human beings, the concept of number has been produced due to the need for counting; Due to the need for measurement and distribution, natural numbers are generated.

The concept of number first began in the knotted rope chronicle.

The concept of number first began in the knotted rope chronicle.

In primitive societies, human beings had to deal with the wild, fish, sticks, stones, etc. in hunting, planting, fishing, gathering and other activities. This understanding of logarithms is often associated with physical objects, such as "moon" for "1", and "eyes", "ears", and "wings of birds" for "2". This is because there is only one moon, man has two eyes and two ears, and a bird has two wings.

Primitive man also recognized that an apple and a sheep were each an individual, and that three trees and three stone axes were piles of three bodies, etc., which was the original concept of numbers.

The earliest ones used to count were fingers, toes, or pebbles, small sticks, etc. Representing 1, 2, 3, and 4 objects, 1, 2, 3, and 4 fingers are stretched out, and when encountering 5 objects, one hand is stretched out, and 10 objects are extended with two hands. When there are a large number, small pebbles are used to count, and a pile of 10 small pebbles is represented by a larger pebble.

In ancient China, small sticks made of wood, bamboo, or bone were used, called arithmetic chips. But most of the hominids encountered a larger number, often indistinguishable.

Counting with fingers, toes, stones, small sticks, etc., makes it difficult to record a number for a long time. Therefore, the ancients invented the method of tying knots to keep counts, or to carve counts on animal skins, trees, and stones. These marks slowly became the earliest numeric symbols (numbers).

The number in common use today is the Indo-Arabic numerals, which are represented by the decimal system. ,... with 0, 1, 2, 9 ten digits can represent any number, and the number of the lower digit will enter the higher digit after the number reaches 10. This decimal system, which now seems simple and ordinary, has evolved over a long period of time.

For example, in ancient Egypt, the digital mark was like this:

If a number of digits exceeds 1, its symbol must be repeated several times. Writing larger numbers is a large string of symbols, which is of course very difficult. The ancient Greeks also needed 27 letters to combine with each other to represent numbers up to 100, which was very inconvenient.

In addition to decimal, there are also pentadecimal, binary, ternac, hepdigcimal, octal, eleven, twelve, twenty, sexagesim, etc. After a long period of practical life application, the decimal system prevailed.

The concept of numbers, the emergence and development of numbers, and the carrying system are the result of long-term human practice.