What was the 'Roaring Twenties' known for?

Discover Canada records this in one direct sentence. The guide writes: The "Roaring Twenties" were boom times, with prosperity for businesses and low unemployment. The stock market crash of 1929, however, led to the Great Depression or the "Dirty Thirties." Unemployment reached 27% in 1933 and many businesses were wiped out. The reason the test wants is therefore because of economic growth and social changes — described in the guide as boom times with business prosperity and low unemployment.

Two specific economic features. Discover Canada commits to "prosperity for businesses" and "low unemployment" as the defining features of the Roaring Twenties. So the era earned its nickname not from any single event but from a sustained period of economic expansion across the decade — making the 1920s a peak of pre-Depression prosperity in Canada.

The Roaring Twenties ended abruptly. Discover Canada writes that "the stock market crash of 1929, however, led to the Great Depression or the 'Dirty Thirties.'" So the 1920s prosperity gave way to the 1930s depression with shocking speed — unemployment reached 27% in 1933, and "many businesses were wiped out." Farmers in Western Canada were hit hardest by low grain prices and a terrible drought.

The 1920s also saw national-symbol formalisation. Discover Canada notes elsewhere that the 1920s saw red and white declared as Canada's national colours (1921), the official coat of arms adopted, and the national motto A mari usque ad mare introduced — all "as an expression of national pride after the First World War." So the Roaring Twenties were both a period of economic boom AND a period of formalised Canadian-identity symbols. The Great Depression that followed in the 1930s tested how durable both the prosperity and the national-identity framework would be.

The question is testing whether new citizens know what made the Roaring Twenties roar. Discover Canada commits to one description: boom times with prosperity for businesses and low unemployment — meaning economic growth and the social changes that came with it. The right test answer matches that.

The wrong answer choices each pick a different reason. "Due to the end of WWI" is partial — the war ended in 1918, before the 1920s — but the boom is described in economic terms, not as a war-end celebration. "Due to the rise of technology" is too narrow. "Because of the Great Depression" reverses the chronology — the Great Depression ended the 1920s prosperity. Only the economic-growth-and-social-changes answer matches.