The banner, with its horizontal red, black and green stripes, was adopted by the Universal Negro Improvement Association (UNIA) at a conference in New York City in 1920.

You see them a lot in West Africa, and those are based on the Ethiopian flag. Green, red, white and black are the four colors of Islam, so you see those a lot in Northern Africa.” ...

Richard Pelham / Getty Images "Green, yellow and black are much more popular in Africa. That may be an anti-colonial reaction to the red, white, and blue of the colonial powers," Kaye says.

Forget the 'dress’ illusion, there’s a new trick that can make you see black and white as green and red for up to three and a half months. The McCollogh effect was discovered by an American ...

Here some things to keep in mind. A red, green and black flag or red, white, and blue? Juneteenth is celebrated on June 19 and commemorates the date in which Maj. Gen. Gordon Granger told ...

The McCollough effect was found by a psychologist in Canada in 1965, and explained by Tom Scott in a video on YouTube (shown). It involves staring at a black and white test image for up to a ...