Shakespeare's sonnets are poems that William Shakespeare wrote on a variety of themes. When discussing or referring to Shakespeare's sonnets, it is almost always a reference to the 154 sonnets that were first published all together in a quarto in 1609; however there are six additional sonnets that Shakespeare wrote and included in the plays Romeo and Juliet, Henry V and Love's Labour's Lost. Shakespeare's sonnets are considered a continuation of the sonnet tradition that swept through the Renaissance, from Petrarch in 14th-century Italy and was finally introduced in 16th-century England by Thomas Wyatt. With few exceptions, Shakespeare's sonnets observe the stylistic form of the English sonnet - the rhyme scheme, the 14 lines, and the meter. But Shakespeare's sonnets introduce such significant departures of content that they seem to be rebelling against well-worn 200-year-old traditions. Instead of expressing worshipful love for an almost goddess-like yet unobtainable female love-object, as Petrarch, Dante, and Philip Sidney had done, Shakespeare introduces a young man. He also introduces the Dark Lady, who is no goddess. Shakespeare's sonnets are considered a continuation of the sonnet tradition that swept through the Renaissance, from Petrarch in 14th-century Italy and was finally introduced in 16th-century England by Thomas Wyatt. With few exceptions, Shakespeare's sonnets observe the stylistic form of the English sonnet - the rhyme scheme, the 14 lines, and the meter. But Shakespeare's sonnets introduce such significant departures of content that they seem to be rebelling against well-worn 200-year-old traditions. Instead of expressing worshipful love for an almost goddess-like yet unobtainable female love-object, as Petrarch, Dante, and Philip Sidney had done, Shakespeare introduces a young maexplores themes such as lust, homoeroticism, misogyny, infidelity, and acrimony in ways that may challenge, but which also open new terrain for the sonnet form.