Flags often imitate or are influenced by other nations, creating “flag families.” For example, the Netherlands’ red, white and blue flag from the 1500s set a precedent.

Flags often imitate or are influenced by other nations, creating “flag families.” For example, the Netherlands’ red, white and blue flag from the 1500s set a precedent.

Green, yellow and red are also Pan-African colors. You see them a lot in West Africa, and those are based on the Ethiopian flag. ... How many countries in the world have red, white, and blue flags?