AIM was founded at a time of continuing social change and protest following achievement of national legislation of the Civil Rights Movement, such as the Civil Rights Act of 1964 and Voting Rights Act of 1965. The tactics AIM adopted were based on its leaders’ perceptions that Indian activists had failed to achieve enough results at the time of its founding. AIM believed that advocates for Indian interests who had worked within the American political system had not been effective. The political system simply ignored Indian interests. The AIM leadership decided at its founding that a more aggressive approach had to be adopted in order for their voices to be heard. Up to this time, Indian advocacy had worked within the system by lobbying activities with the US Congress and the state legislatures.