Answer:
Explanation:
Traditionally, Roman society was extremely rigid. By the first century, however, the need for capable men to run Rome's vast empire was slowly eroding the old social barriers. The social structure of ancient Rome was based on heredity, property, wealth, citizenship and freedom.
There were four main causes of World War I. Militarism, alliances, imperialism and nationalism.<span> The first world war was a result of these four causes, but it was triggered by the assassination of the Austrian archduke Franz Ferdinand and his wife</span>
Answer:
When Austria-Hungary declared war on Serbia, it led to Russia declaring war on Austria-Hungary as well because Russia was in an alliance with Serbia.
Germany which had an alliance with Austria-Hungary via the Triple Alliance then declared war on Russia.
Russia was already in an alliance with Great Britain and France known as the Triple Entente and when Germany declared war on Russia, Great Britain and France declared war on Germany.
Thus began the Great War.
