Day: January 25, 2008
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Positive Benefits of a Vacation
A vacation means the number of days or weeks that people are permitted to be off their job or their school. A vacation is necessary for their mental and physical health to lead a pleasurable life. When people are tired, they cannot
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History of Penicillin
Penicillin was discovered by a Scottish scientist Alexander Fleming in 1928.1 However, a man named Laureate Howard Walter Florey was the first to use it as a medicine. Fleming found that certain blue-green molds inhibited the growth of the bacteria