Order in number the events that started World War I.
Austria declared war on Serbia after Serbia rejects ultimatum.
Russia mobilized against Austria.
Italy signs secret treaty with Great Britain and joins the Allied Powers.
Great Britain reluctantly enters war after Germans violate Belgian neutrality.
Austria issued ultimatum to Serbia after Archduke's assassination.
Other European nations line up with Central Powers or Allied Powers.
Germany declared war on France and Russia.
1. Archduke's assassination
2. Austria issued ultimatum to Serbia
3. Austria declared war on Serbia after Serbia rejects ultimatum
4. Russia mobilized against Austria
5. Germany declared war on France and Russia
6. Other European nations line up with Central Powers or Allied Powers
7. Great Britain reluctantly enters war after Germans violate Belgian neutrality
8. Italy signs secret treaty with Great Britain and joins the Allied Powers
1. Austria issued ultimatum to Serbia after Archduke's assassination.
2. Austria declared war on Serbia after Serbia rejects ultimatum.
3. Russia mobilized against Austria.
4. Germany declared war on France and Russia.
5. Other European nations line up with Central Powers or Allied Powers.
6. Great Britain reluctantly enters war after Germans violate Belgian neutrality.
7. Italy signs secret treaty with Great Britain and joins the Allied Powers.
To order the events that started World War I, we need to understand the sequence in which they occurred:
1. The assassination of Archduke Franz Ferdinand: The Archduke of Austria-Hungary, Franz Ferdinand, was assassinated in Sarajevo on June 28, 1914. This event sparked the chain of events leading to World War I.
2. Austria issues an ultimatum to Serbia: On July 23, 1914, Austria-Hungary issued an ultimatum to Serbia, blaming Serbian officials for the assassination of Archduke Franz Ferdinand. Serbia rejected some of the conditions, leading to an escalation of tensions.
3. Austria declares war on Serbia: After Serbia's rejection of the ultimatum, Austria-Hungary declared war on Serbia on July 28, 1914.
4. Russia mobilizes against Austria: In response to Austria's declaration of war, Russia began mobilizing its forces to support Serbia.
5. Germany declares war on France and Russia: Due to its alliance with Austria-Hungary, Germany declared war on both France (on August 3, 1914) and Russia (on August 1, 1914). Germany's declaration of war on these nations marked a significant escalation of the conflict.
6. Other European nations align with Central Powers or Allied Powers: Following the initial declarations of war, other nations in Europe joined either the Central Powers (led by Germany and Austria-Hungary) or the Allied Powers (including countries like France, Russia, and eventually Italy).
7. Great Britain enters war after German violation of Belgian neutrality: Great Britain initially remained neutral, but when Germany violated Belgian neutrality by invading the country on August 4, 1914, Britain reluctantly entered the war on the side of the Allies.
8. Italy signs secret treaty with Great Britain and joins Allied Powers: Italy initially maintained neutrality but signed a secret treaty with Great Britain and joined the Allies in 1915.
So, the ordered events that started World War I are as follows:
1. The assassination of Archduke Franz Ferdinand.
2. Austria issuing an ultimatum to Serbia after the assassination.
3. Austria declaring war on Serbia after the rejection of the ultimatum.
4. Russia mobilizing against Austria.
5. Germany declaring war on France and Russia.
6. Other European nations aligning with either the Central Powers or Allied Powers.
7. Great Britain reluctantly entering the war after Germany violated Belgian neutrality.
8. Italy signing a secret treaty with Great Britain and joining the Allied Powers.