No the Milky Way galaxy has not merged with any other galaxy
Yes, Lincoln was against slavery. He issued the Emancipation Proclamation to set the slaves free.
Northern leaders tried to encourage Americans to buy goods made in the United States rather than foreign imports by A. High taxes on imports to increase the cost of imported goods.
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The encomienda system was seen as a true trusteeship among the
population, as opposed to the repartimiento system which was seen as
abusive, and was thought to promote unethical behavior.