The Shepheardes Calender was Edmund Spenser's first major poetic work, published in 1579. In emulation of Virgil's first work, the Eclogues, Spenser wrote this series of pastorals to begin his career. However, Spenser's models were rather the Renaissance eclogues of Mantuanus. The title, like the entire work, is written using deliberately archaic spellings, in order to suggest a connection to medieval literature, and to Geoffrey Chaucer in particular. The poem introduces Colin Clout, a folk character originated by John Skelton, and depicts his life as a shepherd through the twelve months of the year. The Calender encompasses considerable formal innovations, anticipating the even more virtuosic Countess of Pembroke's Arcadia (The "Old" Arcadia, 1580), the classic pastoral romance by Sir Philip Sidney, with whom Spenser was acquainted. It is also remarkable for the extensive commentary included with the work in its first publication, ascribed to an "E.K." E.K. is an intelligent, very subtle, and often deeply ironic commentator, who is sometimes assumed to be an alias of Spenser himself. The term sarcasm is first recorded in English in Spenser's poem.
The twelve eclogues of The Shepheardes Calender, dealing with such themes as the abuses of the church, Colin's (Spenser) shattered love for Rosalind, praise for Queen Elizabeth, and encomia to the rustic Shepherd’s life, are titled for the months of the year. Each eclogue is preceded by a woodcut and followed by a motto describing the speaker. The opening line of each eclogue expresses characteristics of the month, and the poem as a whole charts common accuracy of the seasons, the toil and celebrations of the village year. The precision of the description of birds, flowers, and harvests is balanced by an underlying theme of the hardships and rituals that each season entails. Each pastoral in the poem can be classified into one of three categories, identified as moral, plaintive, or re-creative.
The plaintive and re-creative poems are each devoted to presenting Colin Clout in his double character of lover and poet, whereas the moral poems are mixed with mocking bitterness, which moves Colin from a dramatic personae to a more homely style. While the January pastoral tells of the unhappy love of Colin for Rosalind, the springtime of April calls for a song in praise of Elizabeth. In May, the shepherds, who are rival pastors of the Reformation, end their sermons with an animal fable. In summer, they discourse on Puritan theology. October brings them to contemplate the trials and disappointments of a poet, and the series ends with a parable comparing life to the four seasons of the year.