By Yelena Mandenberg Also known as the UNIA flag, Afro-American flag, Black Liberation flag or simply the Marcus Garvey flag, this vibrant symbol of red, black, and green came to be in 1920. Marcus Garvey aimed to create a symbol that would represent independence, pride and political power for Black Americans. This Jamaican political activist, journalist, and speaker is famous for founding the Universal Negro Improvement Association and African Communities League (UNIA). With his pals who were also activists like him, they formed this association to shout loudly against colonialism and support…