Study on the History of Relationship between Frontier Nationality in Northeast China and Central Dynasty from the Sixth to Ninth Century;
六至九世纪东北边疆民族与中央王朝关系史研究
A Research on the Chinese Northeast Border Ethnic Relations with the Central Dynasty from the 6th to 9th Century
国际史学界对六至九世纪中国东北边疆民族与中央王朝关系史研究述评
The Distinctness of Macao Cultural Exchange between Mid 16～(th) and Mid 19th;
十六世纪中叶至十九世纪中叶澳门中西文化交流的特异性
The last decade of the 19th century means from 1890 to 1899.
十九世纪最后十年是指1890至1899年。
Scientific studies have determined that the construction of this grotto had started in the third century and ended in the ninth century, with a duration of 600 years.
经科学测定，约开始于公元三世纪，终止于九世纪，绵延长达六百年。
WangTao and the Society of HongKong (1860-1870s);
王韬与十九世纪六七十年代的香港社会
That was how the Chinese tried to learn from foreign countries in the period from the 1840s to the beginning of the 20th century.
这就是十九世纪四十年代至二十世纪初期中国人学习外国的情形。
F.J. Turner s Frontier Thesis and American Foreign Policy of Expansion (from the End of the 19～(th) Century to the Beginning of the 20～(th) Century);
特纳的“边疆假说”与美国的对外扩张政策（十九世纪末至二十世纪初）
The Research on Calendar Picture of Shanghai and Its Value in the Late 19th Century to the First Half of 20th Century
十九世纪末至二十世纪上半叶上海月份牌画及其价值研究
Research City Construction in Macao from Opium War to Late Nineteenth Century;
鸦片战争至十九世纪末澳门城市建设研究
Disput between Monarchial Power and Religious Power in East Roman Empire from the Eighth to the Nineth Century;
八至九世纪东罗马帝国的君权与教权之争
Colima's Salt Industry during the Period of colony
殖民地时期的科利马盐业(十六至十八世纪)
European Style of Porcelain Exported by Jingdezhen in the 16th-18th Centuries
十六至十八世纪景德镇外销瓷的欧洲艺术风格
A Research and Study on the Macao Portuguese Literary Writers and their Works in the 16～(th) to 20～(th) Century;
十六至二十世纪澳门葡语文学的探索与研究
Macao in the 16th and 18th century and the East-West Regious and Cultural Communications;
十六至十八世纪的澳门与东西宗教文化交流
The Activities of Mongolia in Huare Tibetan Areas during the 16 and 18 Centuries
十六至十八世纪蒙古族势力在华热藏区的活动
There are over six billion now, but in the 1800s there were only one billion people!
现在有六十多亿，但十九世纪时全世界只有十亿人口。
The secession of some southern state from the u.s.a. In the 1860s lead to a civil war
十九世纪六十年代美国南部一些州退出联邦导致了一场内战