Which Ivy League school was the last to admit a black student?

Yale was the last Ivy League school to admit a Black student. While there were some earlier Black students at Yale, the consistent and widespread admission of Black students happened significantly later than at other Ivies. It's important to note that records from this era are not always complete and precise, making pinpointing the absolute "last" difficult. However, Yale is generally considered to be the last among the Ivies to have meaningful integration of Black students.