Who was Elizabeth Freeman and how was she influential in ending slavery in Massachusetts?

Elizabeth Freeman, also known as Mum Bett, was an African American woman who became a pivotal figure in the abolition of slavery in Massachusetts. After escaping from slavery in 1781, she successfully sued for her freedom in 1783, arguing that the state constitution's declaration that "all men are born free and equal" applied to her. Her case set a significant legal precedent, leading to the eventual end of slavery in Massachusetts. Freeman's courage and determination not only secured her own freedom but also inspired others to challenge the institution of slavery in the state.