instruction:
This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.
question:
Solar distillation can be used to make saline or brackish water potable. The first recorded instance of this was by 16th-century Arab alchemists. A large-scale solar distillation project was first constructed in 1872 in the Chilean mining town of Las Salinas. The plant, which had solar collection area of 4,700 m2 (51,000 sq ft), could produce up to 22,700 L (5,000 imp gal; 6,000 US gal) per day and operate for 40 years. Individual still designs include single-slope, double-slope (or greenhouse type), vertical, conical, inverted absorber, multi-wick, and multiple effect. These stills can operate in passive, active, or hybrid modes. Double-slope stills are the most economical for decentralized domestic purposes, while active multiple effect units are more suitable for large-scale applications.
answer:
In what year was a large scale solar distillation project constructed in Las Salinas?


question:
Diagnosis of infectious disease is nearly always initiated by medical history and physical examination. More detailed identification techniques involve the culture of infectious agents isolated from a patient. Culture allows identification of infectious organisms by examining their microscopic features, by detecting the presence of substances produced by pathogens, and by directly identifying an organism by its genotype. Other techniques (such as X-rays, CAT scans, PET scans or NMR) are used to produce images of internal abnormalities resulting from the growth of an infectious agent. The images are useful in detection of, for example, a bone abscess or a spongiform encephalopathy produced by a prion.
answer:
How is diagnosis of infectious disease almost always initiated?


question:
In November 2013, Somalia received its first fiber optic connection. The country previously had to rely on expensive satellite links due to the civil conflict, which limited internet usage. However, residents now have access to broadband internet cable for the first time after an agreement reached between Hormuud Telecom and Liquid Telecom. The deal will see Liquid Telecom link Hormuud to its 17,000 km (10,500 mile) network of terrestrial cables, which will deliver faster internet capacity. The fiber optic connection will also make online access more affordable to the average user. This in turn is expected to further increase the number of internet users. Dalkom Somalia reached a similar agreement with the West Indian Ocean Cable Company (WIOCC) Ltd, which it holds shares in. Effective the first quarter of 2014, the deal will establish fiber optic connectivity to and from Somalia via the EASSy cable. The new services are expected to reduce the cost of international bandwidth and to better optimize performance, thereby further broadening internet access. Dalkom Somalia is concurrently constructing a 1,000 square mile state-of-the-art data center in Mogadishu. The site will facilitate direct connection into the international fiber optic network by hosting equipment for all of the capital's ISPs and telecommunication companies.
answer:

What year did Somalia receive its first fiber optic connection?