A traditional sonnet has 14 lines, a specific rhyme scheme, and a specific structure.

Sonnet 43 by Gwendolyn Brooks is an example of a modern adaptation of a sonnet because it explores a new theme (the beauty of black women) while maintaining the traditional form of the sonnet.

Sonnet 2 by Edna St. Vincent Millay is an example of a variation on a sonnet because it breaks the traditional rhyme scheme of a sonnet.

Gwendolyn Brooks is known for writing modern adaptations of sonnets that explore new themes and ideas while maintaining the traditional form of the sonnet.

Edna St. Vincent Millay is known for writing variations on sonnets that break the traditional rhyme scheme or structure of a sonnet.

The main difference between a modern adaptation of a sonnet and a variation on a sonnet is that a variation on a sonnet breaks the traditional form of the sonnet.

Sonnet 43 by Gwendolyn Brooks is an example of a modern adaptation of a sonnet that explores a new theme (the beauty of black women) while maintaining the traditional form of the sonnet.

Sonnet 2 by Edna St. Vincent Millay is an example of a variation on a sonnet that breaks the traditional rhyme scheme of a sonnet.

Edna St. Vincent Millay is known for writing variations on sonnets that break the traditional structure of a sonnet.

Sonnet 18 by William Shakespeare is an example of a modern adaptation of a sonnet that maintains the traditional form of the sonnet.

Sonnet 116 by William Shakespeare is an example of a variation on a sonnet that maintains the traditional rhyme scheme of a sonnet.

William Shakespeare is known for writing modern adaptations of sonnets that explore traditional themes such as love, beauty, and mortality.

Edna St. Vincent Millay is known for writing variations on sonnets that explore new themes such as feminism and social justice.

The main similarity between a modern adaptation of a sonnet and a variation on a sonnet is that they both maintain the traditional structure of the sonnet.