What are examples of allusion in Romeo and Juliet?

* The play contains numerous allusions to Greek and Roman mythology. For example, Romeo compares Juliet to the sun, describing her as "The all-seeing sun ne'er saw her match" (Act 1, Scene 5). This is an allusion to the Greek goddess Helios, who was said to drive his chariot across the sky each day, bringing light to the world.

* Allusion to the Bible: In the play, the friar refers to the biblical story of Adam and Eve, comparing Romeo and Juliet's love to the forbidden fruit that Adam and Eve ate in the Garden of Eden.

* Cupid: Mercutio refers to the Roman god of love, Cupid, when he tells Romeo that he is "a love-monger, a love-god, a Cupid" (Act 1, Scene 4).

* Allusion to the Five Senses: Romeo's description of Juliet in Act 2, Scene 2 is full of references to the five senses. He says that her beauty is "beyond compare" and that her voice is "sweetest music."

* Allusion to the Trojan War: Romeo compares himself to Paris, the Trojan prince who abducted Helen of Troy, when he says that he will "steal" Juliet from her family (Act 2, Scene 2).

* Allusion to the Book of Revelation. In Act 5, Scene 3, Romeo refers to the Book of Revelation when he says that Juliet's tomb is "a feasting presence full of light." This is an allusion to the description of heaven in the Book of Revelation, which is said to be "a place where there is no night" (Revelation 21:25).