The Middle Ages (the term Dark Ages has been out of favour for quite some time) was the period which followed the fall of the Roman Empire. Therefore, it no longer existed.
The flooding in of Eurasian peoples.
You need to answer this question yourself because it is so broad. Find out what the problems were and decide what was not a problem.
some problems were the bad weather,risky river crossing,stampedes occasional attacks from native americans,and raids from cattlethieves,called rustlers
Rome faced various political problems at different times. At the beginning, it was the monarchy, in the early republic it was the unrest of the plebeians, the Social Wars, the civil wars and the foreign wars also added to Rome's political problems. When Christianity gained strength, it too became a political matter.
From the 1800s to 1905, the Russian Empire faced significant internal problems, including political repression, social unrest, and economic challenges stemming from serfdom and industrialization. The discontent among peasants, workers, and intellectuals grew, leading to calls for reform and revolution. Externally, Russia struggled with military defeats, such as in the Crimean War (1853-1856) and the Russo-Japanese War (1904-1905), which exposed its weaknesses and further fueled domestic dissatisfaction. These factors culminated in the 1905 Revolution, highlighting the empire's vulnerabilities and the urgent need for reform.
The Great Terror.
find out yourself
they don't have equal voting rights
The Austrio-Hungarian Empire faced the problem of war.
The flooding in of Eurasian peoples.
The problem they faced were nationalist revolts break out and Young Turks demanding a reform.
After his ten-year conquest he died/was murdered, so he had little time to deal with the problems to trying to unify, rule, expand prosperity and culture which faced him.
The Austro-Hungarian Empire faced many problems. One of which was the pure size of the Empire. Another problem was its defeat in World War I.
A problem the song dynsty faced was not having enough soilders to control their empire.
snow storms
everything.
They would have a problem of water. The crops would have demolished and The animals and humans would die.