when was he born?
February 3, 1811
Horace Greeley
Horace Greeley (February 3, 1811 – November 29, 1872) was an American newspaper editor and publisher who was the founder and editor of the "New-York Tribune", among the great newspapers of its time. 
who is horace greeley? An American newspaper editor and publisher
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Horace Greeley [SEP] Introduction
Greeley's alliance with William H. Seward and Thurlow Weed led to him serving three months in the House of Representatives, where he angered many by investigating Congress in his newspaper. In 1854, he helped found and may have named the Republican Party. Republican newspapers across the nation regularly reprinted his editorials. During the Civil War, he mostly supported Lincoln, though he urged the president to commit to the end of slavery before Lincoln was willing to do so. After Lincoln's assassination, he supported the Radical Republicans in opposition to President Andrew Johnson. He broke with Republican President Ulysses Grant because of corruption and Greeley's sense that Reconstruction policies were no longer needed.