Explain ONE reason why the people living under Aztec rule wanted a change in rulers at the time the Europeans arrived

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Explanation:

European conquerors exploited the native Aztec people in order to gain profit. Systems such as cash crops were developed in order to use the Aztec people to gain profit in Europe.

trade

explanation:

the emancipation proclamation was the aim of the war change to include the freeing of slaves in addition to preserving the union. the 13th amendment, which abolished slavery in the u.s. was passed on december 6th 1865.

as promised, lincoln waited to unveil the proclamation until he could do so with success from the union military advance. on september 22nd 1862, after a victory at antietam, he publicly announced a preliminary emancipation proclamation, declaring all slaves free in the rebellious states as of january 1st 1863.