Roaring Twenties is a phrase use to describe the 1920s, principally in North America, that emphasizes the period's social, artistic, and cultural dynamism. Normalcy returned to politics in the wake of World War I, jazz music blossomed, the flapper redefined modern womanhood, Art Deco peaked, and finally the Wall Street Crash of 1929 served to punctuate the end of the era, as The Great Depression set in. The era was further distinguished by several inventions and discoveries of far-reaching importance, unprecedented industrial growth and accelerated consumer demand and aspirations, and significant changes in lifestyle.