Answer:
Congress passed the American Indian Religious Freedom Act.
Step-by-step explanation:
This is the most important effect that "the longest walk" had on legislation. We learn that the walk was organized by hundreds of Native Americans who walked 3,200 miles over a period of six months from California to Washington, D.C. This enormous effort led to the passage of the American Indian Religious Freedom Act, which gave more protections to traditional Native American religious customs.