2009年9月23日，在无锡市东北塘中学，美国职业棒球大联盟（MLB）重点打造的中国首座“棒球梦工厂”——MLB无锡棒球发展中心（简称：无锡DC）。时至今日，无锡DC已经七岁啦！生日快乐，MLB 无锡棒球发展中心！ 当天，无锡DC工作人员特地准备了蛋糕庆生，同时 ...

After World War Two, many Americans still believed that people of different races should not mix. In some parts of the country, blacks and whites lived in separate areas and went to separate schools.