Question: What first appeared in Colonel William Light’s designed  layout and development programme for the city of Adelaide, South Australia?

full_context: Document 1: Light Square: Light Square also known as Wauwi is one of five squares in the City of Adelaide. Located in the centre of the north-western quarter of the Adelaide city centre, the Square is named after the city's planner, Colonel William Light.
Document 2: East Terrace, Adelaide: East Terrace ( ) marks the eastern edge of the city centre of Adelaide, the capital city of South Australia. It is one of the main north-south thoroughfares through the east side of the city. Although the terrace essentially runs north-south between North Terrace and South Terrace, unlike Adelaide's other three terraces, its path is far from a straight line; travelling the entire length of East Terrace requires turning at right angles at most intersections. After crossing South Terrace, the street continues through the parklands as Beaumont Road, but unlike other roads through the parklands it is not a thoroughfare; there is a break in the middle of it.
Document 3: Geology of South Australia: South Australia is an Australian state, situated in the southern central part of the country, and featuring some low-lying mountain ranges, the most significant being the Mount Lofty Ranges, which extend into the state's capital city, Adelaide, which comprises most of the state's population. Adelaide is situated on the eastern shores of Gulf St Vincent, on the Adelaide Plains, north of the Fleurieu Peninsula, between Gulf St Vincent and the low-lying Mount Lofty Ranges. The state of South Australia, which stretches along the coast of the continent and has boundaries with every other state in Australia, with the exception of the Australian Capital Territory and Tasmania. The Western Australia border has a history with South Australia, involving the South Australian Government Astronomer, Dodwell and the Western Australian Government Astronomer, Curlewis in the 1920s to mark the border on the ground.
Document 4: Botanic Park, Adelaide: Botanic Park, which is a part of Park 11 and also known by its Kaurna name Tainmundilla, is a 34 hectare (84 acre) park in the Northeast Parklands of the South Australian capital of Adelaide. It is bordered by Hackney and Frome Roads. The park abuts the Adelaide Zoo and River Torrens on its northern side and an avenue of Plane Trees planted in 1874 to its southern side. It is dotted with exotic species such as century-old Moreton Bay Figs from Queensland.
Document 5: Creswell Gardens: The Creswell Gardens are a located in the Adelaide Park Lands between the Adelaide Oval, War Memorial Drive, King William Road and St Peter's Cathedral. They were established in 1909 and named after South Australian sportsman John Creswell. The gardens contain a number of Adelaide's landmark features.
Document 6: South Terrace, Adelaide: South Terrace is a street on the south side of the city centre of Adelaide, the capital of South Australia. It runs from Anzac Highway and connects to Glen Osmond Road. King William Street ends at South Terrace. It is the southern edge of the city centre, and is bounded by parklands to the south, including Veale Gardens. Pulteney Grammar School is located on South Terrace, as is a large office tower owned by Optus.
Document 7: Marion, South Australia: Marion is a suburb in the City of Marion in Adelaide around 10 km south-west of the CBD. Founded as a rural village in 1838 on the banks of the Sturt River, Marion was found to have rich soil and the population expanded rapidly. Colonel William Light laid out the plan for the village, as he had done with the City of Adelaide itself.
Document 8: Western Cemetery (Portland, Maine): The Western Cemetery is an urban cemetery in Portland, Maine. At one time Portland's home for the "poor and indigent", the cemetery is named after for its location in Portland's West End neighborhood and proximity to the Western Promenade. Founded in the 18th century, the land was acquired by the city in 1829. In 1841, the city expanded the cemetery to its present 12 acres . The Western Cemetery was Portland's primary cemetery from 1829–1852, when Evergreen Cemetery was established in Deering, then a suburb of Portland. It was an active cemetery until 1910. In October 2003, the cemetery began a restoration and reconstruction project was run by the Stewards of the Western Cemetery and the City of Portland and funded with municipal funds.
Document 9: County of Light: The County of Light is one of the 49 counties of South Australia. It was proclaimed by Governor George Grey in the 1840s and named for Colonel William Light, the first Surveyor-General of South Australia. It covers the modern region of the Barossa Valley including much of the northern Mt Lofty Ranges. It is bounded by the upper Wakefield River in the north, the approximate path of Horrocks Highway in the west, and the Light River in the south.
Document 10: William Light: Colonel William Light (27 April 1786 – 6 October 1839) was Eurasian, an artist, naval and army officer and the first Surveyor-General of the Colony of South Australia. He is famous for choosing the site of the province's capital, Adelaide, and for designing the layout of its streets and parks – in the Adelaide city centre and the Adelaide Park Lands.
Document 11: Light's Vision: The first surveyor-general of Adelaide, South Australia, Colonel William Light designed a layout and development programme for the city. This plan is now known as "Light's Vision". Notable aspects of Light's plan are that the city centre is laid out in a grid-like pattern, with squares in the centre of the city and in the centres of the four quarters of the city, (NW, NE, SE, SW), and the city is surrounded by Parklands.
Document 12: Electoral district of Light: Light is an electoral district of the House of Assembly in the Australian state of South Australia. As its area overlaps or is adjacent to the south western portion of the Light Regional Council and the south bank of the Light River, it is indirectly named after Colonel William Light, the first Surveyor-General of South Australia. The electorate was created in 1857, abolished at the 1902 election and recreated at the 1938 election. Covering a total area of 459.7 km², Light consists of Gawler, surrounding areas and rural areas to the north, extending south of the Gawler River through to the far outer northern Adelaide suburbs of Munno Para West and parts of Munno Para Downs. It is classed as a rural seat.
Document 13: West Terrace Cemetery: The West Terrace Cemetery is South Australia’s oldest cemetery, first appearing on Colonel William Light’s 1837 plan of Adelaide. The 27.6 ha site is located in Park 23 of the Adelaide Park Lands just south-west of the Adelaide city centre, between West Terrace, Anzac Highway, Sir Donald Bradman Drive and the Seaford–Belair Railway Lines. Originally known as the Adelaide Public Cemetery, it is divided into a number of sections for various communities and faiths, including two Catholic areas, as well as Jewish, Afghan, Islamic and Quaker sections.
Document 14: Street Naming Committee (Adelaide): The Street Naming Committee was set up to decide the names of the streets, the squares and the river of the new settlement of Adelaide, South Australia, as it had been laid out by Colonel William Light in 1837. Light's map corresponds to the modern Adelaide city centre and North Adelaide. The committee met on 23 May 1837.
Document 15: Morningside Cemetery, Edinburgh: Morningside Cemetery was established in Edinburgh in 1878 by the Metropolitan Cemetery Company, originally just outwith the then city boundary, the nearest suburb then being Morningside. It extends to just over 13 acres in area. The cemetery contains 80 war graves. Although arguably visually uninspiring the cemetery contains several important female figures; including a female air commandant, Scotland's first female surgeon, the first female Fellow of the Royal College of Physicians of Edinburgh, a Nobel Prize winner and many church missionaries.
ground_truth: South Australia’s oldest cemetery