Which term best describes is a way of acquiring knowledge that cannot be obtained by inference, deduction, observation, reason, analysis or experience?

The answer is intuition. It is a way of having to understanding an information, fact or something in a more fast phase without having to provide any reasoning  or obtaining any experience, analysis or observation to be done in order to learn or know it.

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

the telephone is the answer