Problem: In 1903 Hermann Emil Fischer and Joseph von Mering disclosed their discovery that diethylbarbituric acid, formed from the reaction of diethylmalonic acid, phosphorus oxychloride and urea, induces sleep in dogs. The discovery was patented and licensed to Bayer pharmaceuticals, which marketed the compound under the trade name Veronal as a sleep aid beginning in 1904. Systematic investigations of the effect of structural changes on potency and duration of action led to the discovery of phenobarbital at Bayer in 1911 and the discovery of its potent anti-epileptic activity in 1912. Phenobarbital was among the most widely used drugs for the treatment of epilepsy through the 1970s, and as of 2014, remains on the World Health Organizations list of essential medications. The 1950s and 1960s saw increased awareness of the addictive properties and abuse potential of barbiturates and amphetamines and led to increasing restrictions on their use and growing government oversight of prescribers. Today, amphetamine is largely restricted to use in the treatment of attention deficit disorder and phenobarbital in the treatment of epilepsy.
Why were acids restricted?
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Answer: unanswerable

Problem: New Haven is a predominantly Roman Catholic city, as the city's Dominican, Irish, Italian, Mexican, Ecuadorian, and Puerto Rican populations are overwhelmingly Catholic. The city is part of the Archdiocese of Hartford. Jews also make up a considerable portion of the population, as do Black Baptists. There is a growing number of (mostly Puerto Rican) Pentecostals as well. There are churches for all major branches of Christianity within the city, multiple store-front churches, ministries (especially in working-class Latino and Black neighborhoods), a mosque, many synagogues (including two yeshivas), and other places of worship; the level of religious diversity in the city is high.
However Christianity can be found within the city, particularly which neighborhoods?
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Answer: working-class

Problem: Early-years education is quite common in Thuringia. Since the 1950s, nearly all children have been using the service, whereas early-years education is less developed in western Germany. Its inventor Friedrich Frobel lived in Thuringia and founded the world's first Kindergartens there in the 19th century. The Thuringian primary school takes four years and most primary schools are all-day schools offering optional extracurricular activities in the afternoon. At the age of ten, pupils are separated according to aptitude and proceed to either the Gymnasium or the Regelschule. The former leads to the Abitur exam after a further eight years and prepares for higher education, while the latter has a more vocational focus and finishes with exams after five or six years, comparable to the Hauptschule and Realschule found elsewhere in Germany.
For how long have Thuringian children been using the current education system?
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Answer:
Since the 1950s