How did landscape architects become involved with public open space POS? Q&A

Answer: American landscape architects were involved with public projects in the nineteenth century and they became a focus for British landscape architecture after 1940.
There was some use of the term ‘landscape architect’ by British designers in the second half of the nineteenth century but they used it in connection with the design of private gardens. The first use of ‘landscape architect’ for a public project in the UK was by Patrick Geddes and Thomas Mawson in 1901-3. But the history of the term is not the same as the history of the art of composing the primary elements of the outdoor landscape to make space for public use an enjoyment. This art is very old and can, for example, be seen at Stonehenge and in the layout of Roman towns in Britain.