2 actually. 1818 and 1868
The official state flag was adopted in July 1,1970 -illinois constitution book
July 1st, 1970
The Illinois state flag represents the Great Seal of Illinois.
The two years listed on the flag of Illinois are 1818 and 1868. The first date is the year Illinois became a state. The second date is the date the state seal was redesigned.
Illinois.
1967
The current design of the flag of Illinois depicts the Great Seal of Illinois, which features an eagle perched on top of a rock, with the dates 1818 and 1868 on the rock, representing the year in which Illinois became a state, and the year in which the seal was redesigned, respectively.
white
The eagle is the symbol of America and Illinois choose it as well.
1818, Eagle 1970, flag
The Cedar Tree is on the lebanese flag
freedom peace