Flag of Bangladesh white field. The flag is based on a similar flag used during the Bangladesh Liberation War of 1971, which had a yellow map of the country inside the red disc. In 1972 this map was removed from the flag. One reason given was the difficulty for rendering the map correctly on both sides of the flag. The civil ensign and naval ensign place it in the canton of a red or white field, respectively. The first version of the flag was designed and made by a section of student leaders and activists of Swadheen Bangla Nucleus on 6 June 1970,
Flag of Portland, Oregon Flag of Portland, Oregon The city flag of Portland, Oregon, consists of a green field on which is placed a white four-pointed star (a truncated hypocycloid) from which radiate blue stripes, each bordered by L-shaped yellow elements. Narrow white fimbriations separate the blue and yellow elements from each other and from the green background. The official ordinance specifies a height of 3 feet and a length of 5 feet. City ordinance 176874, adopted September 4, 2002, designates the design and its symbolism. Green stands for "the forests and our green City"; yellow for "agriculture and commerce"; blue for "our rivers".