What was the spark that ignited World War I? Where did it take place?

The spark was the assassination of the Austro-Hungarian Arch Duke, Franz Ferdinand, by a serbian nationalist, in the city of Saravejo.

Explanation:

This assassination created a conflict betweent the powerful Austro-Hungarian Empire, and the weak and much smaller Serbia, something that prompted Russian intervention on behalf of Serbia.

Germany soon followed, and declared war on Russia because it was an ally of Austria-Hungary.

Finally, France and Britain declared war on Germany because they were allies of Russia.

in february 1787, congress decided that a convention should be convened to revise the articles of confederation, the nation’s first constitution. in may, 55 delegates came to philadelphia, and the constitutional convention began. debates erupted over representation in congress, over slavery, and over the new executive branch. the debates continued through four hot and muggy months. but eventually the delegates reached compromises, and on september 17, they produced the u.s. constitution, replacing the articles with the governing document that has functioned effectively for more than 200 years.

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