<em>Dura-Europos</em> was an ancient city located in the vicinity of village of <em>Salhiyé</em>, Syria, along the Euphrates river, close to the Iraq border.
Christian places needed to be discreet or secret around 240 A.D.; thus earlier congregations worshiped in private houses of wealthy members; some of those houses were converted into churches, and the house in <em>Dura-Europos</em> was one of those conversions.
So the purpose of the frescoes was to celebrate Christian worship secretly, and to illustrate the old testament writings, mostly for the illiterate people who couldn't read the sacred books, as a medium of what they called "<em>hope of new spiritual birth</em>".
Answer: He rose through military ranks and used the recent discovery of guns.
Explanation:Oda Nobunaga was a Japanese daimyō and one of the leading figures of the Sengoku period. He is regarded as the first "Great Unifier" of Japan. Nobunaga was head of the powerful Oda clan, and launched a war against other daimyo's to unify Japan in the 1560s