How did Alexander the Great contribute to the spread of democracy?

How did Alexander the Great contribute to the spread of democracy? He forced those he conquered to adopt a feudal system. He brought Greek ideas to regions he conquered. He introduced Islamic culture throughout Europe.

battle of saint-mihiel, (12–16 september 1918), allied victory and the first u.s.-led offensive in world war i. the allied attack against the saint-mihiel salient provided the americans with an opportunity to use their forces on the western front en masse.

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honestly i really it keep confusion down on some sides