In 1828, a teen aged Abraham Lincoln guided a flatboat down the Mississippi River to New Orleans. The adventure marked his first visit to a major city and exposed him to the nation's largest slave marketplace.
B, C and D are the correct answers hope I can help!
Franz Ferdinad was assassinated.
I sure don't have time to write an essay! But the first one sounds alright.
One of the early Chinese civilizations was located between the two main rivers, (google them for more details) Anyways, unlike most of China, the plain between the two rivers is fertile, allowing the people to grow rice and other foods. Along with that, I am certain that they had mountains and deserts to the west. If they could be used against natural disasters (I doubt they'd come in west) it'd be helpful! Good day