1866:Mendels Law of Heredity
Through his work crossbreeding different varieties of the garden pea, Austrian monk Gregor Mendel advanced the idea that traits are transferred from parents to progeny by way of distinct units and formulated mathematical laws governing the inheritance of these traits. Mendels law was eventually proven true for both plants and animals. His findings were rediscovered in the early twentieth century, allowing farmers to reproduce positive traits in plants and create healthier, stronger crops of food.
1914:Birth Control
Margaret Sanger sparked the birth control movement with the publication of The Woman Rebel, in which she encourages women to view conception as a choice rather than an obligation. In 1923, her tireless efforts resulted in the establishment of Americas first legal birth control clinic, which served as a contraceptive dispensary and research facility under the auspices of the American Birth Control League . The birth control movement has had far-reaching, worldwide implications, from womens rights to population control to the sexual revolution.
在SAT写作时如果可以加入这些生物和医学领域的事件,不但可以让你的作文出现亮点,也会让教授感觉到你对美国的历史很了解,印象分也会大大提高哦!
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