How were ancient american cultures similar to ancient cultures in the eastern hemisphere

The Celts were highly attuned to the stars and the ancient middle eastern and Egyptian cultures studied the stars and could routinely predict astrological phenomena, but so could the Mayans. ... The Central American cultures built stepped Pyramids, and the Mesopotamians built similar styles in their Ziggurats.

Explanation:

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texas governor sam houston opposed secession, but was unable to prevent it. in this speech, given prior to lincoln's election, he presents the argument that slavery would be safer within the united states than outside of it. it was a prescient argument, and one held by several other southern leaders.

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