Zimbabwe Actual life expectancy in Botswana declined from 65 in to 49 in before increasing to 66 in In South Africa, life expectancy was 63 in , 57 in , and 58 in And in Zimbabwe, life expectancy was 60 in , 43 in , and 54 in For example, white Americans born in are expected to live until age The greatest difference was 7.
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Antonie van Leeuwenhoek was the first to study microorganisms, using simple microscopes of his own design. Lazzaro Spallanzani showed that boiling a broth stopped it from decaying. Ancient precursors[ edit ] Vardhmana Mahavira postulated the existence of microscopic creatures in the 6th century BC. The possible existence of microorganisms was discussed for many centuries before their discovery in the 17th century.
Life is a long road on a short journey. Among them is the metaphor of life as a battle. Try not to think of life in these terms because, if you regard life as a struggle, it will become one, and you will have little joy. It is far better to think of life as a journey in which the difficulties are hills to climb.
His mother died only a few days later on July 7, and his only sibling, an older brother, ran away from home when Rousseau was still a child. Rousseau was therefore brought up mainly by his father, a clockmaker, with whom at an early age he read ancient Greek and Roman literature such as the Lives of Plutarch. His father got into a quarrel with a French captain, and at the risk of imprisonment, left Geneva for the rest of his life. Rousseau stayed behind and was cared for by an uncle who sent him along with his cousin to study in the village of Bosey. In , Rousseau was apprenticed to an engraver and began to learn the trade.