The key reason for the ending of native civilizations in North, Central and South America was the colonization of these places by Europeans. One of the main factors was that the Europeans brought lots of diseases that Native populations had no immunity to. Another was the genocide of these populations by colonizers.<span />
Here's the thing: President Lincoln had absolutely no way to actually enforce the Emancipation Proclamation. It was a mere gesture.
Now, he had his reasons for making such a gesture.
For one, Lincoln hoped that, when the slaves heard that they had been granted their freedom, the sudden wave of freedmen, as they would come to be called, would help disrupt the war effort.
Perhaps some of these freedmen would join the Union army. That was another small reason.
As for why he didn't extend the Proclamation to the entire country...well, the thing was, he planned to.
Lincoln's greatest ambition was to free the slaves. But even in the North, there existed strong racism. Plus, some Northerners had slaves too, and Lincoln needed the North's support, not only to win the war, but also to support the Thirteenth Amendment he planned to propose after the war ended. This Thirteenth Amendment would make outlaw slavery in the United States forever.
Hi!
The central idea of the metaphor was that the people in the lifeboat are the rich nations, whereas those that are drowning are the poor nations.
This metaphor is known as lifeboat ethics, and is used to illustrate the distribution of resources.
The metaphor depicts a lifeboat which is boarded by 50 people (the wealthy nations), and 100 people swimming in the surrounding water at risk of drowning. The 'ethical issue' is stirred by the fact that there is room for 10 more people on this lifeboat, and if the surrounding people should be taken aboard -and if so, what would be the conditions of such an act.
Hope this helps!
Treaty of Peace between the Allied and Associated Powers and Germany.