Rich or poor, we all have problems: that unfaithful mate, that irritating(恼人的) colleague, that persistent disease, the investment that is turning into a huge loss. How do we remain calm, positiv
Copernicus was born in Torun,Poland,on February 19,1473.Little is known about his early life except that his father died when he was 10.An uncle adopted him,his two sisters,and his brother.