Short answers, pulled from the story.
The Latin word suburbium combines sub meaning under or below with urbs meaning city. Cicero used the term suburbani to describe large villas built by wealthy patricians on Rome's outskirts during the first century before Christ.
Rail lines catalyzed the first major wave of suburban expansion across Europe and North America during the nineteenth century. London's Metropolitan Railway opened its first line in the 1860s connecting the financial heart of the City to what would become suburbs like Harrow.
In 1947 alone 540,000 veterans purchased homes averaging $7,300 each. The G.I. Bill guaranteed low-cost loans with very low down payments to 16 million eligible veterans.
Federal housing policies deliberately excluded African Americans from postwar suburban opportunities through redlining practices. Banks refused to insure mortgages in neighborhoods where Black residents lived or were expected to move.
Sydney's urban sprawl occurred predominantly in Western Suburbs while Melbourne developed streetcar suburbs during the tram era. These distinct patterns reflect different historical contexts within Australia.