Final answer:
James Madison agreed to create a Bill of Rights in part due to the influence of George Mason, an Anti-Federalist who advocated for explicit protections for individual rights.
Step-by-step explanation:
James Madison agreed to create a Bill of Rights partially due to the influence of the Anti-Federalist known as George Mason. Mason was a prominent figure who argued that the Constitution needed explicit protections for individual rights and freedoms. Madison ultimately recognized the validity of Mason's concerns and worked to include a Bill of Rights to address them.
Learn more about Influence of George Mason on James Madison and the creation of the Bill of Rights