<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.mwisho wa karne ya 19 ulikuwa wakati wa mabadiliko makubwa yaliyotia ndani jitihada za kuelimisha watu kuhusu afya na usafi.  <response>: the end of the 19th century was a time of tremendous progress in public health and medicine, when the benefits of sanitation and clean water were recognized. 