Final answer:
The Birta Abolition Act-2021 is likely referring to general abolition legislation that aimed to end slavery, with abolitionists like William Lloyd Garrison and James G. Birney advocating for moral suasion and political processes against slavery.
Step-by-step explanation:
The Birta Abolition Act-2021 is not a historical Act or part of any abolition legislation directly referenced in historical documents. However, within the context of abolitionism, it is highly likely the question refers to general abolition acts which were against the practice of slavery. Abolitionists worked to end slavery and targeted the immorality of the institution. They believed in moral suasion as a strategy to appeal to the conscience of slaveholders and promote immediate emancipation. In the United States, antislavery movements gained traction in the 19th century, with key figures like William Lloyd Garrison and James G. Birney advocating for the end of slavery through moral arguments and political engagement respectively. The Slavery Abolition Act of 1833 was a real historical act passed by the British Parliament that abolished slavery throughout the British Empire, which might have served as an inspiration for further abolitionist actions in other nations.