They are the only siblings in recorded history to hold concurrent world records and have 4 Olympic gold medals, 2 silvers, 3 bronze, and 15 world championships.
They are all of the same parents.
They are the only siblings in recorded history to hold concurrent world records and have 4 Olympic gold medals, 2 silvers, 3 bronze, and 15 world championships.
They are all of the same parents.
