Polyandry is the name given to the cultural practice of the marriage of one woman to more than one man. The term for polyandry where the husbands of the shared wife are brothers to each other is fraternal polyandry or adelphic polyandry. In Tibet , fraternal polyandry was accepted. Brothers would marry one woman, who left her family to join her husbands, and the children of the marriage would inherit the land. Like many cultural customs, polyandry in Tibet was compatible with specific challenges of geography. In a country where there was little tillable land, the practice of polyandry would reduce the number of heirs, because a woman has more biological limits on the number of children she can have than a man does.
An essay on the principle of population 1798
An Essay on the Principle of Population - Wikisource, the free online library
Thomas Robert Malthus was a famous 18th-century British economist known for the population growth philosophies outlined in his book "An Essay on the Principle of Population. He is also known for developing an exponential formula used to forecast population growth, which is currently known as the Malthusian growth model. In the 18th and early 19th centuries, philosophers broadly believed that humanity would continue growing and tilting toward utopianism. Malthus countered this belief, arguing that segments of the general population have always been invariably poor and miserable, which effectively slowed population growth. After observing conditions in England in the early s, Malthus penned "An Inquiry into the Nature and Progress of Rent" and "Principles of Political Economy" , in which he argued that the available farmland was insufficient to feed the increasing world population. Malthus specifically stated that the human population increases geometrically, while food production increases arithmetically.
What argument did Thomas Malthus make in his work An Essay on the Principle of Population 1798?
Dugie Young explores the idea of the Malthusian population trap. Is the prediction of Malthusian misery coming back into focus? The Malthusian Trap is the theory that, as population growth is ahead of agricultural growth, there must be a stage at which the food supply is inadequate for feeding the population. This was originally devised by Robert Malthus in An Essay on the Principle of Population in , arguing that food supply expansion is linear whereas human growth is exponential. However, the Green Revolution in is an example of how mankind can adapt to make food production more efficient.
How improvements in technology happen, and how they sustain growth in living standards. In , a mysterious disease appeared for the first time in Ireland. It caused potatoes to rot in the ground, but by the time it became clear that a plant was infected, it was too late.