I'm assuming that you're asking about the history of slavery in the United States? If so, a good starting point would be the first documented arrival of African indentured servants in the colony of Virginia in 1619, and a solid ending poiint would be the passage of the thirteenth amendment in 1865. In between, some major points to highlight are Eli Whitney introducing the cotton gin in 1793, the ban on importing slaves from Africa in 1808, the Missouri compromise in 1820, the compromise of 1850 about the expansion of slavery into new territories, and the Dred Scott Supreme Court case in 1857.
Autocrats do not share power, so it has to be the answer. He failed to share power.
The ziggurat was built by King Ur-Nammu and dedicated it to Nanna/Sîn
Answer: The history of Madagascar is distinguished clearly by the early isolation of the landmass from the ancient supercontinent containing Africa and India, and by the island's late colonization by human settlers arriving in outrigger canoes from the Sunda islands (Malay Archipelago) and from East Africa.
