Saying the year 2000

How do you express in what year something happened? For example 'He was born in 2007

Urodził się w roku/ w roce / w dwa tysiące siódmym (?)

How would you say in 2000?

You'll probably find it here:

URL

Take note how the donkey helped expand the discussion into your area of interest!

OK thanks but how would I say in the yrar 2000?

It might be:

na lat dwa tysiąc

...but I'm just a beginner (have been for nearly a year) so the 'tysiąc' might be grammared-up slightly wrongly!

w roku dwutysięcznym

So what's this all about:

There seem to be a lot of words before the actual numbers begin.

"wydarzylo sie na przelomie"

I can't find her original post but I think that, normally, the above phrase is used when time (years) is not specified (e.g. nineties, eighties, on the turn of the 20th century).

If years are specified eg. between 1984 and 1994 I would rather use "pomiędzy”
If something happened in 1984 eg. "It happened in 1984" then I would say "to wydarzyło się w 1984"
but if something was happening throughout (repeatedly) 1984 then, I think, you can say "wydarzylo sie na przelomie 1984"

That is not correct. Na przelomie means on the turn (two years/ centuries/months).
I haven't seen ellas topic but:

there are two dates and you translate years not year. She gives years 1984 and 2012 what doesnt make any sense because after 1984 is coming 1985 of course :).

its better to write "działo się w 1984 roku", but some cases you can still write "wydarzyło się w 1984 roku"(depending on context)