Show danish flag oldest the stars and stripes Is the second oldest established flag the danish flag being the only one which dates farther back in an unchanged form the cross of the danish flag was adopted as the national emblem in the year 1219 the changes in our flag are not figured as the law establishing the flag provided for them at the time the united states flat flag was officially adopted on oil june ll 11 l l 1777 there were a good many national flags which had been in use tor for a considerable period of time but through changes in government these flags have all since been changed in one way or another the present british national flag or union jack was not adopted until 1801 the date of the union of great britain with ireland |