If you say "relevant" and mean true, than no. But if you mean "relevant" as a currently-surviving religion, than yes. There are around 200,000 Zoroastrians in the world today. They still practice fire rituals as well. Thus it is quite difficult to be a practicing Zoroastrian today.
The decendants of the incas still do exist today.
The incas don't exist today
Yes it does exist today, but it did not exist until the 1920's.
yes iis still exist
Slavery did exist in 2004 and still exists today.
Olympia, Greece does not exist today.
No it does not
does the caddo tribe still exist today
Yes famine still exist in many parts of the world.
It has not been proven for vampires to have ever existed. However, it is possible that they have existed and may still exist today.
Yes, it does...
ya