Simplify the following text for a Grade 11 native English-speaking person.
Original: The Continental Congress adopted the current design for the Great Seal of the United States including a Bald Eagle grasping thirteen arrows and a thirteen-leaf olive branch with its talons on June 20 , 1782 .
Simplified: The Continental Congress made the design for the Great Seal of the United States with a Bald Eagle holding thirteen arrows and an olive branch with thirteen leaves in its talons on June 20 , 1782 .