article_snippet: To reduce the smell, the board pushed slaughterhouses north of 40th Street in 1868 and then banned slaughterhouses from between 40th Street  in 1870, according to theChemical Heritage Foundation.
article_snippet: To reduce the smell for residents, board pushed slaughterhouses north of 40th Street in 1868 and then banned residents from between 40th Street in 1870.