Historical background over the Victorian era

Strictly speaking, the Victorian era began in 1837 and ended with Queen Victoria's death in 1901, but the period can be stretched to include the years both before and after these dates, roughly from the Napoleonic Wars until the outbreak of World War I in 1914.

citizens are given 25 years of life to prove their worth to society; if they fail to do great things

the answer should be:

the intervention of the supernatural gives gilgamesh hope that he will defeat humbaba.