How did charlemagne’s rule affect europe? a blocked invasions by magyars, vikings, and huns b extended christianity to western and northern europe c opened the iberian peninsula to arab conquest d rejoined the western and eastern roman empire

B extended Christianity to Western and northern Europe

Charlemagne (742-814), who considered himself a devoted Christian, vehemently sought to unite all the Germanic people into one kingdom and convert them all to Christianity.  

He did, indeed, achieved his purpose. He conquered the Lombards (Northern Italy now), the Avars (Austria and Hungary now) and Bavaria, among others, and for three long decades waged battles on Saxon, a Germanic tribe of "pagan" worshipers, until they were and forced to convert to Christianity: if they didn't follow the Christian traditions, they would be killed.

He also instituted economic and religious reforms, gave money and land to the Christian church, directed revisions of the Bible, protected the popes, was crowned Charlemagne emperor of the Romans in 800, at St. Peter’s Basilica in Rome by Pope Leo III.

the correct answer is a) egypt and china.

egypt and china are two of the world’s oldest civilizations known by man. both ancient empires have left a great historic and cultural legacy to the world through archeology. both civilzations developed complex social relations, had deep religious beliefs, had dominion of agriculture and left writing records to understand their customs and culture.

among the requirements to consider a civilization, we find urbanization, writing records, a place of residence, agriculture methods, technological specialization, means of transportation, currency, population density, social stratification, and political integration.