Complex sentence: President Lincoln's letter of condolence was delivered to Mrs. Bixby on the morning of November 25,1864, the day after Thanksgiving, and was printed in the "Boston Evening Transcript" and "Boston Evening Traveller" that afternoon.
Split into simpler sentences: President Lincoln's letter of condolence was delivered to Mrs. Bixby on the morning of November 25,1864, the day after Thanksgiving. It first appeared in print in both the "Boston Evening Transcript" and "Boston Evening Traveller" that afternoon.