For a military empire, this is crucial. Incan cities were built high in the mountains on cliffs that dropped hundreds of feet. As a result, the Incas were in great shape and were some of the best runners in history. Mountains have lots of natural resources to sustain civilization, including fresh water and food.
Because there are no income limits on Roth 401(k) contributions, these accounts provide a way for high earners to invest in a Roth without converting a traditional IRA. In 2014, you can contribute up to $17,500 to a Roth 401(k), a traditional 401(k) or a combination of the two.ecause there are no income limits on Roth 401(k) contributions, these accounts provide a way for high earners to invest in a Roth without converting a traditional IRA. In 2014, you can contribute up to $17,500 to a Roth 401(k), a traditional 401(k) or a combination of the two.
Participants in an Individual 401k can elect to make after-tax or Roth contributions with the salary deferral portion of the Individual 401k. The 2015 salary deferral contribution limit is $18,000 or $24,000 if age 50 or older.ndividual 401k contribution calculation for an S or C corporation or an LLC taxed as a corporation. 1  Employee Salary Deferral Contribution: In 2015, 100% of compensation up to the maximum of $18,000 or $24,000 if age 50 or older can be contributed to an Individual 401k.