Christianity as we know it began with the birth of Church, 50 days after the crucifixion of it's founder Jesus Christ, which was about 27 to 29 A.D.
So to answer the question, Christianity has "been going for" between 1982 to 1984 years.
How Long Has This Been Going On was created in 1996-01.
It has been going for 16 years.
=HOW LONG HAS CORDE BROADUS BEEN GOING OUT WITH HIS GIRLFRIEND?==HOW LONG HAS CORDE BROADUS BEEN GOING OUT WITH HIS GIRLFRIEND?=
For as long as people have been alive.
i think its been going on forever.
It has been going on scince the 1920's
Probably, it depends on how long you two have been going out. If you have been going out for a long time then yeah, and if you weren't going out for that long then probably no; i don't know ask them then. :)
It is known that Time and calenders have been going on for a long time it is before Christ and it was when god created the world so it has been going for a long time.
For as long as man has been alive
Since 1 A.D. Christ's death was what made the change in the calendar.
Since Christianity began nearly 2000 years ago.
its going on for ages