The Atlantic Ocean. Its the ocean that connects North and South America to Europe. Most early explorers came from Europe and "discovered" the Americas. The slave trade as well as spice trade used the Atlantic ocean because it's the most direct way from most of Europe.
All of them were famous during this part of the century, except for A. Mark Twain. He was famous during the LATE part of the 19th Century.
Answer: because he cant
Explanation: because he cant
