QUES: Q: What did the ascent of the Matterhorn mark?
A: While Mont Blanc was first climbed in 1786, most of the Alpine four-thousanders were climbed during the first half of the 19th century; the ascent of the Matterhorn in 1865 marked the end of the golden age of alpinism.
Does the answer answer the question?

ANS: yes

QUES: Q: For what purpose were Roman camps arranged?
A: Roman camps followed a standard pattern for defense and religious ritual; in effect they were Rome in miniature.
Does the answer answer the question?

ANS: yes

QUES: Q: What made power distribution economically viable in Edison's lamp?
A: They conclude that Edison's version was able to outstrip the others because of a combination of three factors: an effective incandescent material, a higher vacuum than others were able to achieve (by use of the Sprengel pump) and a high resistance that made power distribution from a centralized source economically viable.
Does the answer answer the question?

ANS: yes

QUES: Q: When did the battle take place?
A: Wu Sangui, caught between a rebel army twice his size and a foreign enemy he had fought for years, decided to cast his lot with the Manchus, with whom he was familiar.
Does the answer answer the question?

ANS:
no