Answer: Slavery was legal in most societies at some time in the past but is now outlawed in all recognized countries. The last country to officially abolish slavery was Mauritania in 1981. Nevertheless, there are an estimated 40.3 million people worldwide subject to some form of modern slavery.
Although even now people are still being enslaved without permission.
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Although many of the Founding Fathers acknowledged that slavery violated the core American Revolutionary ideal of liberty, their simultaneous commitment to private property rights, principles of limited government, and intersectional harmony prevented them from making a bold move against slavery. The considerable investment of Southern Founders in slave-based staple agriculture, combined with their deep-seated racial prejudice, posed additional obstacles to emancipation.
Answer:
A. To irrigate the land and sell crops
Explanation:
To divert rivers and streams is an irrigation system used since the antiquity to irrigate crops and to extend the sowing areas, now the difficulty of water access and the low rainfall in Texas obligate them to use that system to avoid crop losses and to improve the production capacity, in consequence, to earn the most quantity of money per crop with the minimun investment and expenses.
President Abraham Lincoln paved the way for abolishing slavery, in the year 1808 they stopped the transport of slaves from Africa to the US.