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.
Q: Under a banner of "reducing public drunkenness" the Beer Act of 1830 introduced a new lower tier of premises permitted to sell alcohol, the Beer Houses. At the time beer was viewed as harmless, nutritious and even healthy. Young children were often given what was described as small beer, which was brewed to have a low alcohol content, as the local water was often unsafe. Even the evangelical church and temperance movements of the day viewed the drinking of beer very much as a secondary evil and a normal accompaniment to a meal. The freely available beer was thus intended to wean the drinkers off the evils of gin, or so the thinking went.
A:
What law allowed the existence of beer houses?