2-3 days with ups worldwide saver
1 to 14 days or more
There is no river of that name in Northern Ireland. The Amazon is in South America. The longest river in Northern Ireland is the Bann, which is about 80 miles or 129 kilometres long.
As Northern Ireland is still part of the UK; the same rules will apply.
Santa gets to Northern Ireland in time to deliver all the presents there.
Letters posted within Northern Ireland to other parts of Northern Ireland would normally have next-day delivery.
First class mail is delivered in 3 to 5 days
First Class Mail is delivered in three to five days.
First Class Mail is delivered in three to five days.
2 business days
21
First Class Mail is delivered in three to five days.
No. The Roman Empire got as far as Britain, Ireland's neighbouring island, but never reached Ireland. In any case, Northern Ireland only came into existence in 1922, long after the Roman Empire ended. It also ended long before Britain had any role in Ireland. So Northern Ireland was never part of the Roman empire.
It should be fine as it is. As long as your initial marriage is legal, there shouldn't be any need to register it in Northern Ireland. It will be recognised.