What is the definition of democracy by Abraham Lincoln

The government of the people, for the people, and by the people.

Explanation:

It is a political system in which the supreme power lies in somebody of citizens which are elected by the citizens of that country through lawful voting.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place