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In 1937, the Empire of Japan started a full-scale invasion of China after invading Manchuria in 1931, beginning the Second Sino-Japanese War (often considered a theatre of World War II). Their troops occupied Nanjing in December and carried out the systematic and brutal Nanking Massacre (the "Rape of Nanking"). Even children, the elderly, and nuns are reported to have suffered at the hands of the Imperial Japanese Army. The total death toll, including estimates made by the International Military Tribunal for the Far East and the Nanjing War Crimes Tribunal, was between 300,000 and 350,000. The city itself was also severely damaged during the massacre. The Nanjing Massacre Memorial Hall was built in 1985 to commemorate this event.
When was the Nanjing Massacre Memorial Hall built?
A: 1985

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The importance of Southampton to the cruise industry was indicated by P&O Cruises's 175th anniversary celebrations, which included all seven of the company's liners visiting Southampton in a single day. Adonia, Arcadia, Aurora, Azura, Oceana, Oriana and Ventura all left the city in a procession on 3 July 2012.
How many P&O liners visited Southampton on the day of the 175th anniversary celebrations?
A: seven

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A commutated DC motor has a set of rotating windings wound on an armature mounted on a rotating shaft. The shaft also carries the commutator, a long-lasting rotary electrical switch that periodically reverses the flow of current in the rotor windings as the shaft rotates. Thus, every brushed DC motor has AC flowing through its rotating windings. Current flows through one or more pairs of brushes that bear on the commutator; the brushes connect an external source of electric power to the rotating armature.
What does the excommunicator do?
A: unanswerable

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Alexandria was the most important trade center in the whole empire during Athanasius's boyhood. Intellectually, morally, and politically—it epitomized the ethnically diverse Graeco-Roman world, even more than Rome or Constantinople, Antioch or Marseilles. Its famous catechetical school, while sacrificing none of its famous passion for orthodoxy since the days of Pantaenus, Clement of Alexandria, Origen of Alexandria, Dionysius and Theognostus, had begun to take on an almost secular character in the comprehensiveness of its interests, and had counted influential pagans among its serious auditors.
What was Rome known for?
A:
unanswerable