in the 19th

• Savigny and the legal education in the 19th century
  萨维尼与19世纪法律教育
• In the 19th century , some astronomers observed straight
  在十九世纪，部份天文学家观察到
• The telephone was invented in the 19th century
  电话是在19世纪发明的。
• The social influence of american newspapers in the 19th century
  19世纪美国报纸的社会影响
• Irish immigrnts nd the mericn ctholicism in the 19th century
  爱尔兰移民与19世纪美国天主教
• Settlers flooded from europe to america in the 19th century
  十九世纪欧洲移民纷纷涌到了美国
• On the french impressionism in the 19th century
  谈19世纪法国印象派
• Settlers flooded from europe to america in the 19th century
  十九世纪欧洲移民纷纷涌到了美国。
• A discussion on russian protective tarry policy in the 19th century
  19世纪俄国保护关税政策述论
• Settlers flooded from europe to america in the 19th century
  19世纪,殖民者从欧洲大量涌入美洲。