It is necessary to know the day, month and year of birth of a person in order to find his/her description in the Catalog of human population. However, we have to disappoint astrology and numerology fans, as this is not related to influence of planets and stars, or “magic of numbers.” This is related to natural phenological cycles.

For those who are not familiar with the science called “phenology”—in a nutshell, it is a system of knowledge and sets of information about seasonal phenomena of nature, time periods of their occurrences and reasons that define these periods, as well as the science of space-time laws of cyclical changes of natural objects and their complexes, associated with annual movement of the Earth around the Sun.
In nature, absolutely all bio-forms (plants, animals, birds, fish, insects, reptiles, etc.) appear during their time periods. Scientists have recorded this fact a long time ago. At the beginning of the last century, a German zoologist Alfred Brehm has demonstrated that each type of living organism appears on earth during a specific time period.

For example, rabbits are born in late April-early May, deer—in May-June, seals—in March, and so on. “…And the stork in the heaven knoweth the appointed times, and the turtle, and the swallow and the crane observe the time of their coming…” (Jeremiah 8:7) A human, as part of the earth’s ecosystem, as part of nature is subject to the same laws as all other natural objects; therefore, if at certain specific time periods creatures, which we call “a cow”, “an eagle” or “a hippopotamus” are born, then exactly the same rule applies to a human.

Using scientific terminology, Homo sapiens is programmed bio-form, anthropo-zoomorphic being, individual (subtype) archetypal pattern of which depends on phenological cycling of a geographical area. Appearance of subtypes of the biological type Homo sapiens is connected with natural phenological cycles, and specifically for this reason, classification of subtypes in the Catalog of human population is recorded according to the date of birth.

Andrey Davydov—the author of the discovery of the Catalog of human population in the ancient Chinese manuscript Shan Hai Jing, and the author of creation of the technology of decryption of this ancient book—put together a schedule of appearance of subtype structures of type human, and this schedule is copyrighted.