History of social work the People in London" in 1889 while working at Toynbee Hall. The study was the first systematic attempt at gathering comprehensive statistics and mapping poverty and influenced both social research and the fight against poverty for decades afterwards. By the beginning of the 20th century, these different organizations with their diverse intellectual underpinnings were beginning to coalesce into modern social work. Foundations were established to examine the root causes of social problems such as poverty, and social workers became more professional and scientific in their methodology. The Quaker philanthropist and chocolate manufacturer Joseph Rowntree believed that social evils could be
History of chocolate years thereafter, in 1828, he created a press to remove about half the natural fat (cacao butter) from chocolate liquor, which made chocolate both cheaper to produce and more consistent in quality. This innovation introduced the modern era of chocolate. Known as "Dutch cocoa", this machine-pressed chocolate was instrumental in the transformation of chocolate to its solid form when in 1847 Joseph Fry learned to make chocolate moldable by adding back melted cacao butter. Milk had sometimes been used as an addition to chocolate beverages since the mid-17th century, but in 1875 Daniel Peter invented milk chocolate by mixing a