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.
Answer:
Explanation:Not only was Mesopotamia one of the first places to develop agriculture, it was also at the crossroads of the Egyptian and the Indus Valley civilizations. This made it a melting pot of languages and cultures that stimulated a lasting impact on writing, technology, language, trade, religion, and law.
Answer:
May I ask who them is ? possibly more details