Question: What first appeared in Colonel William Light’s designed  layout and development programme for the city of Adelaide, South Australia?
Sentence (from "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.
Relevant evidence: No