These are the some of the similarities and differences of Olmec and Maya civilization:
Similarities:
They both settled in the lands of Mexico.
They are deeply religious and built pyramids.
Differences:
Unlike the Maya, Olmec did not build large cities.
Maya lasted much longer than the Olmecs.
The correct answer to this open question is the following.
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Andrew Johnson's mild reconstruction policies were replaced by the Reconstruction Acts implemented by Radical Republicans.
Since United States President Abraham Lincoln ordered the Reconstruction period for the Southern states, he gave leeway to the former Confederate states to do Reconstruction in their own way. He devised de 10% plan to again admit each state into the Union. This measures upset Radical Republicans in Congress, who demanded harsh punishment for the southern states. That is why Andrew Johnson's mild reconstruction policies were replaced by the Reconstruction Acts implemented by Radical Republicans.
Answer: He was angry at confederacy. Vicksburg was vital to a union victory.
Athenian democracy developed around the fifth century BC in the Greek city-state (known as a polis) of Athens, comprising the city of Athens and the surrounding territory of Attica, and is the first known democracy in the world.