Final answer:
The emergence of the organized women's rights movement during the period 1820-1860, influenced by abolitionist and social reform movements, led to significant advances in women's rights, although ultimate goals were not achieved.
Step-by-step explanation:
One historical event related to women's rights in the period from 1820 to 1860 was the emergence of the organized women's rights movement, which grew out of the abolitionist movement and the social reform movements of the time. Although the ultimate goals of women's rights were not achieved during this period, significant advances were made. Many women were active in the abolition movement and the temperance movement, and they fought for greater rights and equality.