While you didn't really provide the "following" as the comment above me states, in general, the advantage of secondary sources of primary ones is that they perhaps provide a more objective or even just a broader view on a certain topic. While a primary source of the American civil war would be a letter written by a soldier, a secondary source would be a book that describes more letters taken together and discusses possible information regarding them.
Because it is a lot of work and thinking.
Answer: Because the immigrants can be from any country, so they struggled to speak english
Abraham Lincoln's Gettysbury Address is perhaps the most iconic and famous speeches in the history of the United States.
It the address took place just 4 and a half months after the end of the Civil War, at the time when the United States was struggling to find a national way forward.
The aim of the Address was to provide hope to the American people and give them a vision of a brighter future. It was addressed both at the Southerners and the people in the North.
A whole generation had seen war, death and misery and the future for many, was not so great.
The overall message of the address was to tell every American, that their right to life, liberty and freedom will be respected and that their country will keep on prospering.
The address wanted people to look at the end of the Civil War as an opportunity for a New America.
The Ottoman Empire was one of the mightiest and longest-lasting dynasties in world history. This Islamic-run superpower ruled large areas of the Middle East, Eastern Europe and North Africa for more than 600 years. The chief leader, known as the Sultan, was given absolute religious and political authority over his people. While Western Europeans generally viewed them as a threat, many historians regard the Ottoman Empire as a source of great regional stability and security, as well as important achievements in the arts, science, religion and culture.