Final answer:
Margaret Fuller wrote "The Great Lawsuit: Man vs. Men, Woman vs. Women," a notable work in support of women's rights and transcendentalism.
Step-by-step explanation:
The essay "The Great Lawsuit: Man vs. Men, Woman vs. Women" was written by Margaret Fuller. Fuller was a significant figure among transcendentalists and a strong advocate for women's rights. Despite being a woman barred from attending Harvard during her time, her exceptional intellect earned her access to Harvard's library. As the editor of The Dial and a book reviewer for the New York Tribune, Fuller cemented her influence in the literary world. Her tragic death in 1850 in a shipwreck marked the end of a vibrant chapter in American transcendentalism and gender equality advocacy. While Thoreau and Emerson are critical transcendentalist figures who embraced themes of individualism, nature, and social reform, it is Margaret Fuller who authored the significant work "The Great Lawsuit."