Cadbury was established in Birmingham, England in 1824, by John Cadbury who sold tea, coffee and drinking chocolate. Cadbury developed the business with his brother Benjamin, followed by his sons Richard and George. George developed the Bournville estate, a model village designed to give the company's workers improved living conditions. Dairy Milk chocolate, introduced in 1905, used a higher proportion of milk within the recipe compared with rival products. By 1914, the chocolate was the company's best-selling product.