The "Stamp: Global Impact" in Black History in America signifies the significant contributions of African Americans to the global stage. Like a postage stamp, they have left their mark on the world through achievements in various fields, including politics, arts, sports, and civil rights activism. These individuals, like Martin Luther King Jr., Maya Angelou, and Jesse Owens, have transcended borders, inspiring people worldwide and advancing the cause of racial equality. Their impact serves as a testament to the power of determination and talent in shaping history.