What are the similarities and differences between the presidencies of Woodrow Wilson and Abraham Lincoln?

Answer 1

Both were war-time presidents.

Both suffered personal tragedies. Lincoln lost his son; Wilson lost his wife.

Both were re-elected. Both had bad second terms. Lincoln was shot; Wilson suffered a debilitating stroke.

Lincoln started to desegregate the US government; Wilson effectively re-segregated it. Lincoln was a northerner; Wilson was a southerner (at least born in Virginia).

Lincoln's presidency was almost entirely domestic (for obvious reasons); Wilson's was largely international.