The sonnet-sequence was also a suggestion from Italy, a literary fashion introduced by Sir Philip Sidney, in his _Astrophel and Stella_, written soon after 1580, but not published till 1591. In a sonnet-cycle Sidney recorded his love and sorrow, and Spenser took up the strain with his story of love and joy. Grouped about these, and following in their wake, a number of poets, before the decade was over, turned this Elizabethan "toy" to their purpose in their various self-revealings, producing a group of sonnet-cycles more or less Italianate in form or thought, more or less experimental, more or less poetical, more or less the expression of a real passion. For while the form of the sonnet was modified by metrical traditions and habits, the content also was strongly influenced, not to say restricted, by certain conventions of thought considered at the time appropriate to the poetic attitude. The passion for classic colour in the poetic world, which had inspired and disciplined English genius in the sixties and seventies, was rather nourished than repressed when in the eighties Spenser's _Shepherd's Calendar_ and Sidney's _Arcadia_ made the pastoral imagery a necessity. Cupid and Diana were made very much at home in the golden world of the renaissance Arcadia, and the sonneteer singing the praises of his mistress's eyebrow was not far removed from the lovelorn shepherd of the plains. It may reasonably be expected that in any sonnet-cycle there will be found many sonnets in praise of the loved one's beauty, many lamenting her hardness of heart; all the wonders of heaven and earth will be catalogued to find comparisons for her loveliness; the river by which she dwells will be more pleasant than all other rivers in the world, a list of them being appended in proof; the thoughts of night-time, when the lover bemoans himself and his rejected state, or dreams of happy love, will be dwelt upon; oblivious sleep and the wan-faced moon will be invoked, and death will be called upon for respite. Love and the praises of the loved one was the theme. On this old but ever new refrain the sonneteer devised his descant, trilling joyously on oaten pipe in praise of Delia or Phyllis, Coelia, Caelica, Aurora, or Castara. But this melody and descant were not, in some ears at least, without monotony. For after Daniel's _Delia_, Constable's _Diana_, Lodge's _Phillis_, Drayton's _Idea_, Fletcher's _Licia_, Brooke's _Caelica_, Percy's _Coelia_, N.L.'s _Zepheria_, and J.C.'s _Alcilia_, and perhaps a few other sonnet-cycles had been written, Chapman in 1595 made his _Coronet for his Mistress Philosophy_, the opening sonnet of which reveals his critical attitude: