What happened on March 10 during the U.S. Civil War?
http://www.history.com/this-day-in-history/lincoln-issues-proclamation-of-amnesty-and-reconstruction
On the Water - Abraham Lincoln Patent Model Replica
Abraham Lincoln had considerable maritime background, although it is usually eclipsed by his political heritage. At the age of 19 in Anderson Creek, Ind., he built a flatboat for $24, loaded it with a local farmer’s produce, and floated it 1,000 miles down the Ohio and Mississippi Rivers to New Orleans, where he sold both the boat and its cargo. When he was 22, he was hired by an Illinois store owner to take some goods down the Mississippi and...
http://www.abrahamlincolnonline.org/lincoln/education/patent.htm
Lincoln displayed a lifelong fascination with mechanical things. William H. Herndon, his last law partner, attributed this to his father, saying, "he evinced a decided bent toward machinery or mechanical appliances, a trait he doubtless inherited from his father who was himself something of a mechanic and therefore skilled in the use of tools."