The flag of Illinois is set on a white background and features the state seal at its centre with the word 'Illinois' beneath it. The state seal version of the flag was adopted in 1915 before the word 'Illinois' was added in 1970. The flag's seal includes an image of a bald eagle holding a shield with a 'Stars and Stripes' design on it. The eagle is holding in its beak a red banner with the motto of the state of Illinois - "State Sovereignty, National Union." The seal also features two dates - 1818 and 1868, representing the year Illinois became a state and the year the seal was designed (by Sharon Tyndale) respectively. The flag's ratio is 3:5.