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It is bordered by South Africa to the south and southeast, Namibia to the west and north, and Zimbabwe to the northeast.Its border with Zambia to the north near Kazungula is poorly defined but at most is a few hundred metres long.asserts that the Zambian Society which is part of Central Africa, lived in a stone age in its historical background in the earliest time.This implies that the inhabitants had neither domestic livestock nor agricultural produce, mining and metal work were unknown.However, by about 2,000 years ago, the inhabitants were hit by major social and economic changes which had spread across Africa.These changes are said to have been introduced from the near East; that is Israel in terms of agricultural techniques, domestic stock and later iron working.

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“Since the metal gives a much better cutting edge for weapons than copper or bronze, the rulers of the first iron working communities kept their new discovery to themselves, thereby delaying the spread of iron working to other areas of the world.

Changes to heights over time and within countries paints a picture of economic development.

One major advantage of using height as a proxy is the availability of data in the pre-statistical period.

Human height is determined by a combination of genetics and environmental factors making it an active area of research in both the sciences and social sciences.

Recent breakthroughs in sequencing the human genome have allowed identification of 697 genetic variants that influence the height of an individual.