Before revision: The Lost Generation, also known as the "Generation of 1914" in Europe, is a term originating from Gertrude Stein to describe those who fought in World War I.
After revision: 450px|Timeline of generations in the Western world according to the Pew Research Center – retirement age and life expectancy are approximateThe Lost Generation, also known as the "Generation of 1914" in Europe, is a term originating from Gertrude Stein to describe those who fought in World War I.