Place the following factors that lead to World War 1 in the correct chronological order:

-Assassination of archduke Franz Ferdinand of Austria-Hungary, and Sarajevo.
-Germany’s use of unrestricted submarine warfare results in the thinking of the British passenger ship Lusitania by a German U-boat leading to American civilian casualties.
-President Woodrow Wilson asks Congress and the United States declares war on Germany, entering World War I.
-Germany was allied with Austria-Hungary, and declares war on Russia, beginning the global conflict.
-Austria-Hungary blames Serbia, and declares for Serbia, initiating the July crisis.
-Zimmerman Telegram intercepted, revealing Germany’s, proposal to Mexico for an anti-American alliance.

1. Assassination of Archduke Franz Ferdinand of Austria-Hungary, and Sarajevo

2. Austria-Hungary blames Serbia, and declares war on Serbia, initiating the July crisis
3. Germany was allied with Austria-Hungary, and declares war on Russia, beginning the global conflict
4. Germany's use of unrestricted submarine warfare results in the sinking of the British passenger ship Lusitania by a German U-boat leading to American civilian casualties
5. Zimmerman Telegram intercepted, revealing Germany's proposal to Mexico for an anti-American alliance
6. President Woodrow Wilson asks Congress and the United States declares war on Germany, entering World War I.