Claim: Prior to Abraham Lincoln's presidency, there had been 15 Presidents.
Evidence: Abraham Lincoln -LRB- -LSB- ˈeɪbrəhæm_ˈlIŋkən -RSB- February 12 , 1809 -- April 15 , 1865 -RRB- was an American politician and lawyer who served as the 16th President of the United States from March 1861 until his assassination in April 1865.