One hundred and fifty-nine years ago this Sunday, a 26-year-old white supremacist and Confederate sympathizer named John Wilkes Booth pointed a .44 caliber derringer pistol at the back of Abraham
The day when Americans pay tribute to military men and women killed defending the United States began, for the most part, as a commemoration by Southerners of husbands, fathers and sons who perished in the 19th-century Confederate revolt.