Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,095 pages of information and 233,633 images on early companies, their products and the people who designed and built them.
1956 The name of the Institution of Sanitary Engineers was changed to the Institution of Public Health Engineers
1987 the Institution of Public Health Engineers merged with the Institution of Water Engineers and Scientists and the Institute of Water Pollution Control to form the Institution of Water and Environmental Management (CIWEM).
1995 CIWEM was granted its Royal Charter, which was also the first centenary of the founding organisation.