since the year dot BrE
from the year dot BrE
since the year one AmE
from the year one AmE

There has been a forge here since the year dot.

Traditionally, scientists have been involved in war since the year dot.

Alright, so it's been around since the year dot.

Since the year dot they've been unfit for purpose.

The filthy rag stretched across the front window looked as if it'd hung there since the year dot.

Disney and other cultural institutions have been pouring romantic ideals into women's heads since the year dot.

Tomorrow is shaping up to be plod's greatest own goal since the year dot.

Party member since the year dot.

'Since the year dot,' said the younger American with finality.

It was gray and grim and looked like some elderly gas haulage agency with long-term contracts since the year dot.

But, just before I do, I hope you'll remember that it's me you're talking to - the old school-friend who's known you since the year dot.

Since the Year Dot: Since time immemorial.

There are two public sites in the Vale, one that has been at East Challow since the year dot and people have forgotten actually exist.

'I think the handicapped have every right to go along Skinnergate and High Row,' he said, 'They have gone along it since the year dot.'

Yet we have been using herbs and spices such as basil, tarragon and nutmeg in the preparation of our food since the year dot without any problems, but only in small, safe doses, of course.

And just like today there were money mountains waiting to be picked up, fortunes to be made by the wide boys who weren't queasy about turning peasants out to starve and fencing in the common lands where they'd been pasturing their cows since the year dot.

Language has been my obsession since the year dot - in case you're wondering, this phrase refers to the dot between 1AD and 1BC - so I wrote a book last year called How to Sound Clever: Master the 600 English Words You Pretend to Understand.