To celebrate Workforce Management's 90th anniversary, we're running a series of articles looking at important workforce-related issues with a then-and-now theme. This installment examines the history of employer-sponsored pension (defined benefit) plans with a focus on the turbulent 1930s, what's happening with those plans today, and what the future of employer-sponsored retirement looks like. Next month, we look at the 1940s and the return of veterans into the workforce.