Main Mosques in Brunei through the Ages

Brunei has been a Muslim country for about 500 years now. You would have thought that there would be lots of old mosques in Brunei. But the oldest I think are no more than 50 years old and most of the older ones have been demolished. Even then the older ones are not much older than say 80 or 90 years old. This is because practically all our older mosques are constructed out of timber so none has