Who succeeded Abraham Lincoln as President of the United States?

In which state was James Buchanan born? Who served as Vice President under James Buchanan? Under which president did John C. Breckinridge serve as Vice President? Which number president was Abraham Lincoln? Who was President immediately before Abraham Lincoln? Which president served from 1861 to 1865? In what year did Abraham Lincoln first take office as President? Who was Abraham Lincoln's first Vice President?