The History of Retirement Full Size Version Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Contents Social Security: By the Numbers Here are five facts about Social Security that might surprise you. What Is a Roth 401(k)? Roth 401(k) plans combine features of traditional 401(k) plans with those of a Roth IRA. Retirement Plan Distributions There are a number of ways to withdraw money from a qualified retirement plan.