Leonardo was born on 14/15 April 1452 in the Tuscan hill town of Vinci, in the lower valley of the Arno river in the territory of the Medici-ruled Republic of Florence.

Washington then proceeded to New York City, arriving on April 13, 1776, and began constructing fortifications there to thwart the expected British attack. He ordered his occupying forces to treat civilians and their property with respect, to avoid the abuse suffered by civilians in Boston at the hands of British troops.

On April 14, 1865, President Lincoln was shot by John Wilkes Booth, a Confederate sympathizer. Lincoln died early the next morning.

The assassination of Abraham Lincoln on April 14, 1865, just days after the Army of Northern Virginia's surrender at Appomattox briefly lessened the tension over who would set the terms of peace. The radicals, while suspicious of the new president and his policies, believed, based upon his record, that Andrew Johnson would defer, or at least acquiesce to their hardline proposals.

On April 14, 1876, Douglass delivered the keynote speech at the unveiling of the Emancipation Memorial in Washington's Lincoln Park. In that speech, Douglass spoke frankly about Lincoln, noting what he perceived as both positive and negative attributes of the late President. Calling Lincoln "the white man's president", Douglass criticized Lincoln's tardiness in joining the cause of emancipation, noting that Lincoln initially opposed the expansion of slavery but did not support its elimination. But Douglass also asked, "Can any colored man, or any white man friendly to the freedom of all men, ever forget the night which followed the first day of January 1863, when the world was to see if Abraham Lincoln would prove to be as good as his word?" Douglass also said: "Though Mr. Lincoln shared the prejudices of his white fellow-countrymen against the Negro, it is hardly necessary to say that in his heart of hearts he loathed and hated slavery ...".