In order to keep their vast empire under control, the Incas needed good communication between the areas they ruled.
That is why they worked on building routes and managed to develop an impressive road system which <em>facilitated trade as well as communication</em> between the Incan municipalities. These roads were crucial in <u>maintaining authority over newly conquered lands.</u>
Stare decisis is a legal doctrine that obligates courts to follow historical cases when making a ruling on a similar case. Stare decisis ensures that cases with similar scenarios and facts are approached in the same way.
