Simplify the following text for a Grade 6 native English-speaking person.
Original: KadÄ kÃ y ( ancient and Byzantine Chalcedon ) is a large , populous , and cosmopolitan district of Ä stanbul , Turkey on the Asian side of the Sea of Marmara , facing the historic city center on the European side of the Bosporus . KadÄ kÃ y it is also the name of the most prominent neighborhood of the district , a residential and commercial area that , with its numerous bars , cinemas and bookshops , is the cultural center of the Anatolian side .
Simplified: KadÄ kÃ y is a large district on the Anatolian side of Ä stanbul , Turkey .