Answer:
Although the Chartists failed to achieve their aims directly, their influence persisted and reformers continued to campaign for the electoral reforms advocated by the People's Charter. ... Eventually, only one of the Chartists' demands – for annual parliamentary elections – failed to become part of British law.
Explanation:
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They began using harsh discipline, so that citizens would be less swayed to commit illegal crimes
Answer: Most likely the industrial revolution.
Explanation: The use of machines in production became more and more prevalent, eventually many factories were built in cities which caused pollution therefore making the air gross.