Final answer:
Phillis Wheatley's amended poem is titled "On The Affray in King Street, On the Evening of the 5th of March," reflecting on the events of the Boston Massacre.
Step-by-step explanation:
The poem that was amended by Phillis Wheatley is known as "On The Affray in King Street, On the Evening of the 5th of March."
Wheatley, an 18th-century African-American poet, had a unique style and control over her works, demonstrated through her careful use of capitalization and diacritical marks as revealed in different manuscripts of her poems.
This poem, reflecting on the events of what is now known as the Boston Massacre, was notably excluded from Wheatley's published volume of poetry presumably due to its content which directly related to the politically sensitive events of that time.
The discussion of the manuscript revisions provides insight into Wheatley's approach to her work and the complexities involved in publishing writings that addressed topics such as race and slavery during her era.
The amendments made between the manuscripts kept in various historical societies and those published underscore the attention Wheatley paid to the presentation of her work, even as they may also reflect pressures from her contemporaries or the political context.