The Lincoln-Douglas Debates of 1858 were a series of seven debates between Abraham Lincoln, the Republican candidate for the Senate in Illinois, and Senator Stephen Douglas, the Democratic Party candidate. The main issue discussed in all seven debates was slavery. The debates were held in seven different Illinois: Ottawa on August 21, Freeport on August 27, Jonesboro on September 15, Charleston on September 18, Galesburg on October 7, Quincy on October 13, and Alton on October 15.
Above is a maximum card with a stamp commemorating the Lincoln-Douglas Debates. The stamp was issued on August 27, 1958 in Freeport, the centennial of the debate held in Freeport. The postcard commemorates the 1959 sesquicentennial of Abraham Lincoln's birth.
The postcard below commemorates the October 7 debate in Galesburg.
The back of the above postcard has a cancellation on October 7, 1958, the centennial of the Galesburg debate at Knox College.
This is a post for Sunday Stamps at Viridian's Postcard Blog