Shakespeare's Romeo and Juliet was based on a poem by Arthur Brooke called The Tragic Historye of Romeus and Iuliet, which in turn was based on a poem by the Roman poet Ovid called Pyramus and Thisbe from his masterpiece Metamorphisus?
The “Christmas Song” (also known as “Chestnuts Roasting on an Open Fire”) and “Let it Snow,” were both written in the heart of summer by composers longing for cold winter weather.