James Madison wrote the amendments, which list specific prohibitions on governmental power, in response to calls from several states for greater constitutional protection for individual liberties. ... Anti-Federalists held that a bill of rights was necessary to safeguard individual liberty. -i got that from google :D
Explanation: he went to the coast of Veracruz, México, and from there he traveled to Tlaxcala, Cholula, and eventually reached the Great City of Tenichtitlán (today Mexico City)