Lincoln went public with the preliminary Emancipation Proclamation, which called on all Confederate states to rejoin the Union within 100 days—by January 1, 1863—or their slaves would be declared “thenceforward, and forever free.
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Answer:
B
Explanation:
The answer is B because they had a highly advanced numeral system with place values. Maya mathematics were also far ahead of Europe for many centuries.
<span>Albert Einstein became famous for the theory of relativity, which laid the basis for the release of atomic energy. </span>
Answer:
Deforestation
Explanation:
its plains, there aren't supposed to be many trees.