The Olmec culture thrived along Mexico's Gulf coast from roughly 1200 to 400 B.C. Best known today for their carved colossal heads, the Olmecs were an important early Mesoamerican civilization which had much influence on later cultures such as the Aztecs and the Maya.
Sir Edwin Chadwick (24 January 1800 - 6 July 1890) was an English social reformer who is noted for his work to reform the Poor Laws and to improve sanitation and public health.