lár
The center of the Aztec culture was in Mexico.
It is of Irish and Gaelic origin.
When referring to the language itself, Scottish Gaelic calls itself GÃ idhlig and it is pronounced "gallic". If you are referring to the Gaelic culture in general perhaps Gaelic (gaelik) is preferrable.Irish Gaelic is called Gaeilge pronounced as g(u)ael-geh.
Irish Gaelic is the official language of Ireland and is still widely spoke throughout the country.
There is no such word as gealic. And if you meant Gaelic, you did not specify whether you meant the language, culture, history, music, etc.
A Feis or Fèis is a traditional Gaelic arts and culture festival.
Istanbul is Turkey's leading center of trade and culture.
Quebec is the Canadian Province that is the center of French culture in Canada.
Amherst Center for Russian Culture was created in 1991.
Garage Center for Contemporary Culture was created in 2008.
A person (you asked "who") can not be a center of trade and culture that would need to be a place such as London.