•Why it earns a slot
Romeo and Juliet gave Western culture its defining template for doomed romantic love, and its specific mechanisms — the feud, the balcony scene, the sleeping potion, the missed letter — remain the most widely recognized plot architecture in the English literary tradition.
In Verona, Romeo Montague and Juliet Capulet fall instantly in love at a feast, secretly marry with Friar Lawrence's help, and are almost immediately torn apart by the ancient feud between their families. A chain of fatal misfortunes — Romeo's banishment after killing Tybalt, a sleeping potion mistaken for death, and a letter that never arrives — leads both lovers to die in the Capulet tomb within minutes of each other. Their deaths finally end the feud that destroyed them.
This distillation is written from the freely available original, which is always the better read when you have the time: gutenberg.org.