Answer :
Final answer:
The primary source was created just after Austria-Hungary declared war on Servia (Serbia), detailing Europe's preparation for war and its economic impact.
Explanation:
The primary source was created just after Austria-Hungary declared war on Servia (Serbia). The newspaper headlines indicate the immediate aftermath of the war declaration and the subsequent preparation for war across Europe. American wheat's rise in value is mentioned in the headlines, showing a shift in economic conditions due to the war.
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