<human>:  Help me research the history and facts of Abraham Lincoln?
<bot>: Abraham Lincoln was born in 1809 in a one-room log cabin in Kentucky. He was the 16th President of the United States and his term in office was from 1861 to 1865. He is perhaps best known for leading the country through the American Civil War and preserving the Union and ending slavery. He also championed progressive causes such as the Homestead Act, securing federal finances, and creating the first transcontinental railroad. He was assassinated in 1865, just days after the end of the Civil War and is remembered as the greatest president in American history.