Humans have survived and thrived in Mexico City by using technology to create greater access to land. When the Spanish conquered the Aztec capital, Tenochtitlan, in the 16th century, they built Mexico City by draining the lakes and filling in the lake water to create more arable land for agriculture. This technique of land reclamation has continued to be fundamental to human civilization in Mexico City. The construction of canals and tunnels to transport water out of the valley also has supported land reclamation. The construction of Chinampas, artificial islands to grow food and hillside terraces for water storage and agriculture, is an additional innovative technique that has created more productive land that allows for human survival.
Ok so step 2, Does Lincoln think that we can continue to have some slave states and some free states. Lincoln wanted freedom in ALL states. he wanted to abolish slavery and he was against it. He knows that there cannot be a agreement so he says <span>I believe this government cannot endure permanently half-slave and half-free. he he says he doesn't think the government has a say so in this even though he wants all free states.
</span><span>Does Douglas think we can continue to have some slave states and some free states? he's saying that </span><span>each State being left free to decide for itself. SO in other words, he says that it's shouldn't be up to the gov, but up to the states.
i don't really know much about the part where is says. </span><span>Tell me about a historic idea that supports Douglas’ point of view on this. but i </span>hope that was some help, let me know if u have questions.