Why has it been difficult to decrease the gap in life expectancy between developing and develop countries? Life expectancy has increased at similar rates. The gap between health care access and quality has increased. Infant mortality rates have remained high in developing countries. Poverty has limited life expectancy in developing countries. Life expectancy has increased faster in developed countries.

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

in 342 bc j._c. egypt fell into the hands of the persians, under the reign of nectanebo ii

greek city-states unite in a revolt against the persian empire at the beginning of the fifth century bc. j.-c  

from the year 660 or 659 bc ad, cyrus preached the revolt against the medes to deliver the persians.

quote is the answer your looking for.