Romeo and Juliet belongs to a tradition of tragic romances stretching back to antiquity. Its plot is based on an Italian tale, translated into verse as The Tragical History of Romeus and Juliet by Arthur Brooke in 1562, and retold in prose in Palace of Pleasure by William Painter in 1582. Shakespeare borrowed heavily from both, but developed supporting characters, particularly Mercutio and Paris, in order to expand the plot. Believed to be written between 1591 and 1595, the play was first published in a quarto version in 1597[2]. This text was of poor quality, and later editions corrected it, bringing it more in line with Shakespeare's original.