Independent Solomon Islands
Who & why: the Solomon Islands gain independence from Britain on 7 July 1978, becoming a Commonwealth realm with the British monarch as head of state, represented locally by a governor-general. The new flag, adopted that same year, was chosen from a national design process ahead of independence.
What it represents: a yellow diagonal stripe runs from the lower hoist to the upper fly, dividing the field into a blue upper-hoist triangle and a green lower-fly triangle; the blue stands for the ocean surrounding the archipelago, the green for the land, and the gold stripe for the sun. Five white five-pointed stars in the blue triangle represent the country's five main island provinces at the time of independence — a number that has since grown to nine provinces, with the flag left unchanged.