Official symbols represent the cultural heritage and natural treasures of each state or the entire United States; national symbols. Each state is also recognized by well-known icons and emblems such as state flags & seals, and every city & town has unique landmarks, parks, historic markers, & historic / iconic people.
When did the U.S. begin adopting state symbols?
A "National Garland of Flowers" created for the 1893 Chicago World's Fair (made of representative flowers from each state) was the inspiration for adopting official state flowers. This began a trend that led to the adoption of official state birds, trees, and all the unique state symbols recognized today.