Walls (V – VI century) – cyclopean buildings
In the cultural layers of Derbent dassanetch time were found the excavations conducted by archaeological expeditions under the leadership of Professor A. Kudryavtseva. evidence of the occurrence of the settlement here five years ago. In the book “Muslim city of Dagestan” Alexander Kudryavtsev Abakarovich notes: “the Territory of the Derbent hill continued to settle at the end of the P – beginning I thousand BC In the first quarter of the I Millennium BC on the basis of ancient settlements that existed on the Derbent hill, appeared the first fortification, the ancient fortress-refuge, which was, in fact, the earliest “node”, “castle” famous “Gates”, i.e., “Derbent”, vposledstvii received such wide acclaim.
Research of ancient fortifications of Derbent proved that these fortifications, lying mostly under the walls of the medieval citadel of the city, now known as the Naryn-Kala, was a strong fortress, almost completely similar in layout citadel of feudal times.”
Ancient writers and modern researchers is the construction of the fortifications of the processed stones in the Caspian passage associated with the names of the 4 kings of the Sassanid – Yezdigerd II. Perosa, Kawada and Khosrow I Anushirwan .
K. V. Trever construction of the Derbent defensive system considers it possible to date Continue reading
Megaliths are prevalent worldwide mainly in coastal areas. In Europe they mostly date back to the Eneolithic and bronze age (3rd — 2nd Millennium BC), with the exception of the British Isles. Portugal and France. where megaliths belong to the Neolithic period (for example, Carrowmore in Ireland. Almendres in Portugal, Barnen in Brittany and Buganski necropolis in the Department of Poitou — Charentes. France). Megalithic monuments are especially numerous and diverse in Brittany. Also a large number of megaliths found on the Mediterranean coast of Spain. in Portugal. part of France. on the West coast of England, in Ireland. Denmark. on the southern coast of Sweden and in Israel. In the early twentieth century it was widely believed that all megaliths belonged to one global megalithic culture. but modern research and Dating methods disprove this assumption.
The most common megalithic structure in Europe — the dolmen is a chamber or vault standing upright hewn monoliths, on which rests one or more large flat stones that make up the “roof”. Many of them, though not all, contain the remains of people buried inside. If the main purpose of burial buildings, or humans were sacrificed, was buried in in connection with the execution of Continue reading
Age structure of the population of the world
The human age is the period from his birth to a particular measured point in his life. Because at different stages of their life perform different economic, social and demographic features, in demography adopted different classifications (groups) ages – as more detailed and more generalized. The number of fractional classifications belongs, for example, the following
DYNAMICS OF AGE STRUCTURE OF THE POPULATION OF THE WORLD
In fact, such a classification and is the basis for the allocation and calculation of human contingents that are related to preschool, school, marriage, recruiting, election, reservist, reproductive (all over the world women of this age are more than 1.5 billion), working age, pension and other ages. Of particular importance among these categories is the division of people into three groups: dorogobuzova (gorbachevo), working (working) and posleprodazhnogo (after their work) ages. The boundaries between them can be performed in different ways. For example, in Russia, persons working age includes men aged 16 to 59 and women aged 16 to 54 years (inclusive), and in most foreign countries consider able-bodied men and women aged from 16 to 65 years.
Accordingly Continue reading