(A) ** The Gettysburg address
(B) The Constitution of the U.S.
(C) Declaration of Independence
(D) Emancipation Proclamation
EXPLANATIONS BELOW
Concept note-1: -So “four score and seven years” translates to 87 years. This speech was delivered in 1863; 87 years earlier was 1776, the year that the signing of the Declaration of Independence officially declared U.S. independence and “brought forth on this continent a new nation."
Concept note-2: -Literally, “87 years ago” (score sense: “group of 20”) the beginning of the Gettysburg Address made on November 19, 1863, by United States President Abraham Lincoln (1809–1865).
Concept note-3: -Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure.