The festival has been happening every year since 1990.

Since that time the festival has happened in the desert.

As night falls, it seems as if the festival may not even happen.

Many festivals happen every year, or at some other common interval.

The festival happens from August 14 to the 18 except a few years (including 2005) when it ended 19.

It was the first time that the festival had happened since the end of the war, six years before.

"Without their sponsorship, a festival, even one on this level, could never happen," he said.

Earlier this year it looked as if the festival might not happen.

Although "triennial" means something that happens every three years, the next festival did not happen until 1874.

In some ways, advanced digital technologies made the entire festival happen.