Peabody and Sherman visit America near the end of the Revolutionary War. They find out that Cornwallis cannot surrender because he lost his sword, so they help him find it. This is a comical take on the events that transpired on October 19, 1781, when British General Charles Cornwallis formally surrendered 8,000 British soldiers and seamen to a French and American force at Yorktown, Virginia. Cornwallis' surrender brought the American Revolution to a close.
Peabody introduces Sherman to American writer, Edgar Allen Poe, who is best known for his poetry and short stories, particularly his tales of mystery and macabre. They find Poe writing happy stories and try to scare him in order to spark his thinking in the horror genre.
Peabody introduces Sherman to German composer, Ludwig van Beethoven. When they learn that Beethoven has given up on composing music and has moved on to cooking, they try to spark his inspiration by putting him in situations that relate to his symphonies. Beethoven was a crucial figure in the transition between the Classical and Romantic eras in Western art music and remains one of the most famous and influential composers of all time.