Cultural diversity
Most culture you would see in Abu Dhabi 50 years ago was Arab culture: the same traditions, religion and language.
With the time different people have come to this country and they have got their diverse cultures with their different languages and religions.
Now you can say that this country is changed in 50 years to the best. That is why different cultures are here.
Now you can say that this country is changed in 50 years to the best. That is why different cultures are here.