sentences:  Businessmen complained, and in 1816 Nova Scotia passed an act against trade unions, the preamble of which declared that great numbers of master tradesmen, journeymen, and workmen in the town of Halifax and other parts of the province had, by unlawful meetings and combinations, endeavored to regulate the rate of wages and effectuate other illegal aims.Unions remained illegal until 1851.Nova Scotians fought in the Crimean War.