According to the historian James M. McPherson, Weems' biography of George Washington was likely Abraham Lincoln's only exposure to the study of history as a boy. In a lecture given on Lincoln's birthday in 2010 at Washington and Lee University, McPherson explains how Lincoln, as president-elect, had spoken to the Legislature at Trenton, New Jersey near where, on the day after Christmas 1776, the American Revolution had been saved from collapse by Washington's ragged troops. According to McPherson, Lincoln said: "I remember all the accounts in Weems' books of the battlefields and struggles for the liberty of the country and none fixed themselves upon my imagination so deeply as the struggle here at Trenton: the crossing of the river, the contest with the Hessians, the great hardships endured at that time-- all fixed themselves on my memory more than any single revolutionary event. I recollect thinking then, boy even though I was, that there must have been something more than common that those men struggled for."